2694:
518:
33:
386:
705:
2688:
354:
2469:
617:
2479:
635:
736:, the British Royal Navy adopted the 24-hour clock in 1915, and the Allied armed forces followed soon after, with the British Army switching officially in 1918. The Canadian armed forces first started to use the 24-hour clock in late 1917. In 1920, the United States Navy was the first United States organisation to adopt the system; the
457:
and military communication regulations in some
English-speaking countries discourage the use of 24:00 even in the 24-hour notation, and recommend reporting times near midnight as 23:59 or 00:01 instead. Sometimes the use of 00:00 is also avoided. In variance with this, as of 2010, the correspondence
728:
1886. A report by a government committee in the United
Kingdom noted Italy as the first country among those mentioned to adopt 24-hour time nationally, in 1893. Other European countries followed: France adopted it in 1912 (the French army in 1909), followed by Denmark (1916), and Greece (1917). By
480:
Time-of-day notations beyond 24:00 (such as 24:01 or 25:00 instead of 00:01 or 01:00) are not commonly used and not covered by the relevant standards. However, they have been used occasionally in some special contexts in the United
Kingdom, France, Spain, Canada, Japan, South Korea, Hong Kong, and
444:
In the 24-hour time notation, the day begins at midnight, 00:00 or 0:00, and the last minute of the day begins at 23:59. Where convenient, the notation 24:00 may also be used to refer to midnight at the end of a given date â that is, 24:00 of one day is the same time as 00:00 of the following
1464:
The Army has a new time system â Greenwich Civil Time â to be used in radiograms, telegrams, and all official communications. Effective 10 p. m. Monday, the War
Department adopted the 24-hour system, which is used internationally with the Navy and the Armed forces of associated nations. the six
657:
Italian (Bohemian, Old-Bohemian) hours (full-dial): 24 hours system with the day starting after sunset; on the static dial, the 24th hour was on the right side. In Italy, it was prevalently modified to a 4Ă6 hours system, but some 24-hour dials lasted until the 19th century. The system has spread
448:
The notation 24:00 mainly serves to refer to the exact end of a day in a time interval. A typical usage is giving opening hours ending at midnight (e.g. "00:00â24:00", "07:00â24:00"). Similarly, some bus and train timetables show 00:00 as departure time and 24:00 as arrival time. Legal contracts
1435:
Effective July 1, the United States Army will adopt the 24-hour clock system for all messages, dispatches, orders and reports, the War
Department has announced. Under this new system time will be expressed in a group of four digits ranging from 0000 to 2400. Flying officers at
401:, mm (00 to 59) is the number of full minutes that have passed since the last full hour, and ss (00 to 59) is the number of seconds since the last full minute. To indicate the exact end of the day, hh may take the value 24, with mm and ss taking the value 00. In the case of a
729:
1920, Spain, Portugal, Belgium, and
Switzerland had switched, followed by Turkey (1925), and Germany (1927). By the early 1920s, many countries in Latin America had also adopted the 24-hour clock. Some of the railways in India had switched before the outbreak of the war.
424:
as a separator, but most national standards on time notation have since then been changed to the international standard colon. In some contexts (including some computer protocols and military time), no separator is used and times are written as, for example, "2359".
699:
That this universal day is to be a mean solar day; is to begin for all the world at the moment of midnight of the initial meridian coinciding with the beginning of the civil day and date of that meridian, and is to be counted from zero up to twenty-four hours.
83:
A number of countries, particularly
English speaking, use the 12-hour clock, or a mixture of the 24- and 12-hour time systems. In countries where the 12-hour clock is dominant, some professions prefer to use the 24-hour clock. For example, in the practice of
672:
Striking clocks had to produce 300 strokes each day, which required a lot of rope, and wore out the mechanism quickly, so some localities switched to ringing sequences of 1 to 12 twice (156 strokes), or even 1 to 6 repeated four times (84 strokes).
662:. The Prague Astronomical Clock struck according to the Old Bohemian Clock until its destruction in 1945. The variant with counting from dawn is also rarely documented and used, e.g. on a 16th-century cabinet clock in the Vienna Art-History Museum.
751:(BBC) switched to the 24-hour clock for broadcast announcements and programme listings. The experiment was halted after five months following a lack of enthusiasm from the public, and the BBC continued using the 12-hour clock. In the same year,
405:, the value of ss may extend to 60. A leading zero is added for numbers under 10, but it is optional for the hours. The leading zero is very commonly used in computer applications, and always used when a specification requires it (for example,
550:
repetitions of this sequence. The 24-hour clock is commonly used there only in some specialist areas (military, aviation, navigation, tourism, meteorology, astronomy, computing, logistics, emergency services, hospitals), where the
572:
are always written out and are required to be spoken, so 5:43 a.m. is spoken "zero five forty-three" (casually) or "zero five four three" (military radio), as opposed to "five forty-three" or "five four
452:
While the 24-hour notation unambiguously distinguishes between midnight at the start (00:00) and end (24:00) of any given date, there is no commonly accepted distinction among users of the 12-hour notation.
537:
is a synonym for the 24-hour clock. In the US, the time of day is customarily given almost exclusively using the 12-hour clock notation, which counts the hours of the day as 12, 1, ..., 11 with suffixes
604:(UTC) is designated time zone Z, and thus called "Zulu time". (When used as a modern time zone, in practice, GMT and UTC coincide. For other purposes there may be a difference of about a second.)
397:
A time of day is written in the 24-hour notation in the form hh:mm (for example 01:23) or hh:mm:ss (for example, 01:23:45), where hh (00 to 23) is the number of full hours that have passed since
669:
The modern 24-hour system is a late-19th century adaptation of the German midnight-starting system, and then prevailed in the world with the exception of some
Anglophone countries.
501:
activate the 12-hour notation by default only if a computer is in a handful of specific language and region settings. The 24-hour system is commonly used in text-based interfaces.
2592:
416:; that is, the fractional part follows a decimal dot or comma, as in 01:23:45.678. The most commonly used separator symbol between hours, minutes and seconds is the
558:
Military usage, as agreed between the United States and allied
English-speaking military forces, differs in some respects from other twenty-four-hour time systems:
2515:
1465:
hours difference between
Mountain War Time and actual Greenwich time must be taken into account, so that 12 noon is expressed on communications as 1800.
1291:"International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October 1884. Protocols of the proceedings"
650:
which counted the 24 hours of the day from one-half hour after sunset to the evening of the following day. The 24th hour was the last hour of day time.
665:
German (Gallic) hours (half-dial): 2Ă12 hour system starting at midnight and restarted at noon. It is typical with the 12-hour dial with 12 at the top.
485:
public transport schedule listings file format has the concept of service days and expects times beyond 24:00 for trips that run after midnight.
744:
747:
has grown steadily since the beginning of the 20th century, although attempts to make the system official failed more than once. In 1934, the
2508:
771:
switched to the 24-hour clock for timetables in 1964. A mixture of the 12- and 24-hour clocks similarly prevails in other English-speaking
759:
in the United States both adopted the 24-hour clock. In modern times, the BBC uses a mixture of both the 12-hour and the 24-hour clock.
995:
607:
Hours are always "hundred", never "thousand"; 1000 is "ten hundred" not "one thousand"; 2000 is "twenty hundred" not "two thousand".
3046:
683:, was an early proponent of using the 24-hour clock as part of a programme to reform timekeeping, which also included establishing
784:
2501:
2078:
1914:
1088:
969:
885:
812:
1347:
780:
3277:
1543:
1059:
658:
especially to the Alpine countries, Czech countries and Poland. In Bohemia, this system was finally banned in 1621 after the
3015:
1027:
1004:
1422:
3272:
776:
1452:
1440:
have used the 24-hour clock system for some time. However, its use in official business messages will be an innovation.
482:
475:
3282:
2766:
934:
692:
952:
ISO 8601:2004 â Data elements and interchange formats â Information interchange â Representation of dates and times
911:
ISO 8601:2004 â Data elements and interchange formats â Information interchange â Representation of dates and times
60:
to midnight and is divided into 24 hours. This is indicated by the hours (and minutes) passed since midnight, from
2028:
1683:
852:
587:(UTCâ5), which is designated time zone R, 2:00 a.m. is written "0200R" and spoken "zero two hundred Romeo".
2839:
1907:
1167:
481:
China where business hours extend beyond midnight, such as broadcast television production and scheduling. The
3020:
873:
552:
340:
1990:
1344:"Memorandum CAB 24/110/21 (CP 1721), 'Report of the Committee upon the 24 hour method of expressing time'"
1018:
2975:
2955:
2901:
2786:
2622:
2281:
832:
576:
1225:
76:, is the most commonly used time notation in the world today, and is used by the international standard
2642:
2627:
2565:
2544:
1633:
1613:
877:
752:
601:
463:
977:. Combined Communications-Electronics Board. October 2010. p. 3-6. ACP 121(I). Archived from
2796:
2607:
2344:
2193:
2073:
1623:
1536:
32:
2043:
764:
721:
659:
517:
3056:
2834:
2736:
2652:
2647:
2299:
1950:
1070:
876:
for detailed data about the preferred date and time notations used across the world, as well the
772:
17:
1653:
827:
591:
580:
1343:
3209:
2482:
2114:
2059:
2013:
1998:
1643:
680:
647:
563:
3036:
2950:
2776:
2637:
2365:
2334:
1783:
1678:
1529:
1437:
1318:
1290:
1121:
1007:. March 2010. Chapter 2, Section 5 Paragraph 15. Expressing Military Time. SECNAV M-5216.5.
420:, which is also the symbol used in ISO 8601. In the past, some European countries used the
1030:. June 2015. Chapter 2, Section 5 Paragraph 15. Expressing Military Time. SECNAV M-5216.5.
466:
formerly specified 0001 to 2400. The manual was updated in June 2015 to use 0000 to 2359.
8:
3246:
3041:
2896:
2761:
2713:
2239:
1698:
1658:
842:
822:
802:
709:
597:
417:
2582:
1260:
Scientia Canadensis: Canadian Journal of the History of Science, Technology and Medicine
1125:
493:
In most countries, computers by default show the time in 24-hour notation. For example,
3221:
2995:
2919:
2849:
2188:
2166:
2033:
1857:
1828:
1763:
1756:
1430:
1369:
1137:
1041:
768:
737:
653:
From the 14th to the 17th century, two systems of time measurement competed in Europe:
628:
522:
459:
390:
385:
1095:
978:
3069:
2934:
2751:
2269:
2148:
2048:
1901:
1804:
1708:
1235:
1163:
1141:
1133:
930:
584:
494:
434:
1196:
3214:
2960:
2939:
2891:
2854:
2667:
2387:
2375:
2203:
2171:
2003:
1872:
1788:
1778:
1693:
1267:
1241:
1129:
881:
756:
676:
530:
413:
88:, the 24-hour clock is generally used in documentation of care as it prevents any
2945:
2924:
2756:
2728:
2493:
2449:
2314:
2291:
2259:
2211:
2198:
2161:
2143:
1773:
1768:
1074:
93:
1513:
1485:
704:
3241:
3000:
2990:
2929:
2886:
2718:
2708:
2677:
2577:
2549:
2392:
2382:
2181:
2053:
2023:
2008:
1793:
1751:
1746:
1618:
1355:
713:
688:
1410:
Gallant Canadians: The Story of the 10th Canadian Infantry Battalion 1914â1919
40:, Brazil, with the hour hand on the outside and the minute hand on the inside.
3266:
3128:
3079:
3064:
3010:
2781:
2612:
2528:
2472:
2422:
2370:
2304:
2276:
2264:
2254:
2244:
2126:
1970:
1896:
1845:
1798:
1713:
1673:
1663:
1596:
797:
620:
110:
73:
72:
as an option to indicate the end of the day. This system, as opposed to the
3226:
3113:
3108:
3103:
3090:
2829:
2444:
2438:
2104:
2038:
1960:
1891:
1840:
1741:
1688:
1628:
817:
760:
569:
438:
950:
909:
3236:
3231:
2876:
2859:
2791:
2771:
2657:
2539:
2454:
2432:
2339:
2324:
2119:
2099:
2089:
2018:
1975:
1955:
1884:
1703:
1605:
837:
740:, however, did not officially adopt the 24-hour clock until 1 July 1942.
733:
454:
402:
357:
World map showing the usage of 12 or 24-hour clock in different countries
49:
1208:
925:
Pickar, Gloria D.; Graham, Hope; Swart, Beth; Swedish, Margaret (2011).
353:
3251:
3204:
3188:
3074:
2980:
2801:
2662:
2632:
2570:
2349:
2249:
2156:
2131:
1934:
1718:
616:
1112:
Guinot, Bernard (August 2011). "Solar time, legal time, time in use".
3148:
2985:
2869:
2844:
2824:
2741:
2693:
2687:
2672:
2412:
2329:
1965:
1877:
1852:
1833:
1723:
1395:
1313:
1272:
1255:
725:
684:
421:
89:
1230:
Annual Report of the Board of Regents of the Smithsonian Institution
1183:
449:
often run from the start date at 00:00 until the end date at 24:00.
3183:
3163:
3005:
2911:
2811:
2602:
2597:
1980:
1823:
1733:
1591:
1581:
406:
398:
85:
77:
57:
37:
3178:
3168:
3098:
2970:
2881:
2746:
2319:
2309:
2231:
2222:
2207:
2094:
1939:
1862:
1571:
1459:
724:
was among the first organisations to adopt the 24-hour clock, at
695:
in 1884, the following resolution was adopted by the conference:
2109:
929:(2nd Canadian ed.). Toronto: Nelson Education. p. 60.
562:
No hours/minutes separator is used when writing the time, and a
3173:
3123:
3118:
2417:
1576:
1064:
639:
1317:
reports on a timetable using the 24-hour clock on a trip from
3153:
2965:
2864:
2819:
2427:
2176:
1867:
1815:
1327:. No. 31880. London. 2 October 1886. col 1â2, p. 8.
807:
634:
502:
498:
412:
Where subsecond resolution is required, the seconds can be a
646:
The first mechanical public clocks introduced in Italy were
3158:
3143:
3133:
2587:
2524:
1566:
1552:
847:
433:"23:59" redirects here. For the Christian metal album, see
2593:
International Earth Rotation and Reference Systems Service
1184:
Hodiny nÄmeckĂ© a ÄeskĂ© na pĆŻl orloje a podle celĂ©ho orloje
3138:
1351:
748:
594:". "1200J" ("twelve hundred Juliett") is noon local time.
547:
53:
924:
1521:
555:
are deemed too inconvenient, cumbersome, or dangerous.
506:
1415:
1160:
History of the Hour. Clock and Modern Temporal Orders
509:
default to displaying timestamps in 24-hour format.
1515:
Counting Time: a brief history of the 24-hour clock
1487:
Counting Time: a brief history of the 24-hour clock
1370:"History of the 24-Hour Clock - 24 Hour Time Clock"
341:
12-hour clock § Confusion at noon and midnight
2523:
579:are lettered and given word designations from the
1453:"It Will Be 2100 O'Clock at Ft. Bliss At 3 p. m."
716:up to XXIII (23) and 0 for midnight, in Greenwich
3264:
1479:
1477:
1475:
1473:
1162:. The University of Chicago Press. p. 114.
1157:
1089:"Communication Instructions General ACP 121(I)"
955:(3rd ed.). 2004. Clause 4.2.3 "Midnight".
335:
333:
331:
2509:
1537:
1470:
779:much more broadly than English speakers, and
1020:Department of the Navy Correspondence Manual
997:Department of the Navy Correspondence Manual
775:countries: French speakers have adopted the
476:Date and time notation in Japan § Time
428:
328:
2516:
2502:
1544:
1530:
1445:
1226:"Time-reckoning for the twentieth century"
1219:
1217:
92:as to when events occurred in a patient's
1271:
1153:
1151:
3047:International Commission on Stratigraphy
1483:
1338:
1336:
1334:
1237:Time-reckoning for the twentieth century
964:
962:
703:
679:, the engineer-in-chief of the Canadian
633:
615:
516:
384:
352:
31:
1223:
1214:
886:Date and time representation by country
813:Date and time representation by country
590:Local time is designated as zone J or "
14:
3265:
1285:
1283:
1148:
1111:
902:
753:Pan American World Airways Corporation
2497:
1525:
1331:
1256:"Sandford Fleming and Universal Time"
1253:
1247:
959:
2478:
1500:Sarasota Herald-Tribune 1943 May 14.
1028:United States Department of the Navy
1005:United States Department of the Navy
971:Communication instructions â General
469:
1280:
866:
745:24-hour clock in the United Kingdom
625:Face with Four Prophets/Evangelists
553:ambiguities of the 12-hour notation
488:
122:12:00 a.m. (start of the day)
24:
1158:Dohrn-Van Rossum, Gerhard (1996).
566:is appended (for example "0340Z").
25:
3294:
2767:Discrete time and continuous time
1507:
1042:"Reference | Static Transit"
693:International Meridian Conference
2692:
2686:
2477:
2468:
2467:
1423:"Army Adopts 24-Hour Clock Plan"
1186:, Otta z Losu, last update 2021.
749:British Broadcasting Corporation
564:letter designating the time zone
512:
1494:
1402:
1388:
1362:
1305:
1202:
1189:
1176:
1105:
1081:
1052:
853:Traditional Chinese timekeeping
2840:History of timekeeping devices
1034:
1011:
988:
943:
918:
642:that lists hours 1 to 12 twice
435:Veni Domine § Discography
368: 24-hour (12-hour orally)
99:
13:
1:
1484:Boardman, Peter (July 2011).
895:
874:Common Locale Data Repository
521:24-hour clock as seen on the
3278:Date and time representation
7:
2787:Gravitational time dilation
2623:Barycentric Coordinate Time
2282:Geological history of Earth
1433:. 26 June 1942. p. 2.
880:settings of major computer
833:List of military time zones
790:
638:The 24-hour tower clock in
10:
3299:
3273:24-hour clocks and watches
2643:Geocentric Coordinate Time
2628:Barycentric Dynamical Time
2566:Coordinated Universal Time
1634:Orders of magnitude (time)
1462:. 3 July 1942. p. 3.
1399:: 1918 September 19, p. 3.
1224:Fleming, Sandford (1886).
1195:Stan. MaruĆĄĂĄk, Petr KrĂĄl:
1134:10.1088/0026-1394/48/4/S08
611:
602:Coordinated Universal Time
473:
464:United States Marine Corps
432:
36:A public 24-hour clock in
3197:
3088:
3055:
3029:
2910:
2810:
2797:Time-translation symmetry
2727:
2701:
2684:
2608:International Atomic Time
2558:
2535:
2463:
2405:
2358:
2345:Time translation symmetry
2290:
2230:
2220:
2142:
2069:
1989:
1930:
1814:
1732:
1642:
1604:
1590:
1559:
1293:. Project Gutenberg. 1884
648:mechanical 24-hour clocks
389:24-hour digital clock in
324:
3283:Time measurement systems
1551:
859:
722:Canadian Pacific Railway
660:defeat on White Mountain
585:US Eastern Standard Time
429:Midnight 00:00 and 24:00
374: Both in common use
3057:Astronomical chronology
3030:Archaeology and geology
2737:Absolute space and time
2653:IERS Reference Meridian
2648:International Date Line
2559:International standards
2300:Absolute space and time
1951:Astronomical chronology
1071:Oxford University Press
787:also use both systems.
777:24-hour clock in Canada
546:distinguishing the two
2350:Time reversal symmetry
1654:Italian six-hour clock
828:Italian six-hour clock
717:
702:
643:
631:
581:NATO phonetic alphabet
526:
394:
382:
41:
27:Timekeeping convention
3016:Weekday determination
2902:Sundial markup schema
2115:Time and fate deities
2060:The Unreality of Time
1999:A series and B series
1348:The National Archives
1254:Creet, Mario (1990).
1209:ÄeskĂœ Äas s otaznĂkem
1067:UK English Dictionary
914:(3rd ed.). 2004.
707:
697:
681:Intercolonial Railway
637:
619:
520:
388:
356:
48:is the convention of
35:
3037:Chronological dating
2777:Theory of relativity
2638:Daylight saving time
2366:Chronological dating
2335:Theory of relativity
1679:Daylight saving time
1408:Dancocks, Daniel G.
1319:Port Arthur, Ontario
1077:on 12 November 2020.
437:. For the film, see
3247:Time value of money
3042:Geologic time scale
2897:History of sundials
2762:Cosmological decade
2714:Greenwich Mean Time
2545:Orders of magnitude
1659:Thai six-hour clock
1456:El Paso Herald-Post
1374:Military Time Chart
1323:"A Canadian Tour".
1234:Reprinted in 1889:
1126:2011Metro..48S.181G
927:Dosage calculations
843:Thai six-hour clock
823:Hindu units of time
803:24-hour analog dial
710:Shepherd Gate Clock
598:Greenwich Mean Time
577:Military time zones
120:12:00 midnight
3222:Mental chronometry
2850:Marine chronometer
2702:Obsolete standards
2189:Rosy retrospection
2167:Mental chronometry
1991:Philosophy of time
1431:Brownsville, Texas
1427:Brownsville Herald
1376:. 24 December 2016
884:, and the article
769:London Underground
738:United States Army
718:
644:
632:
629:Florence Cathedral
583:. For example, in
527:
460:United States Navy
395:
391:Miaoli HSR station
383:
42:
3260:
3259:
3070:Nuclear timescale
2752:Continuous signal
2491:
2490:
2401:
2400:
2376:Circadian rhythms
2194:Tenseâaspectâmood
2049:Temporal finitism
1926:
1925:
1902:Grandfather clock
1046:Google Developers
984:on 7 August 2011.
882:operating systems
505:programs such as
495:Microsoft Windows
470:Times after 24:00
351:
350:
320:(end of the day)
16:(Redirected from
3290:
2961:Dominical letter
2892:Equation of time
2855:Marine sandglass
2696:
2690:
2668:Terrestrial Time
2525:Time measurement
2518:
2511:
2504:
2495:
2494:
2481:
2480:
2471:
2470:
2388:Glottochronology
2228:
2227:
2144:Human experience
2004:B-theory of time
1602:
1601:
1546:
1539:
1532:
1523:
1522:
1501:
1498:
1492:
1491:
1481:
1468:
1467:
1449:
1443:
1442:
1419:
1413:
1406:
1400:
1392:
1386:
1385:
1383:
1381:
1366:
1360:
1359:
1358:. 4 August 1920.
1340:
1329:
1328:
1309:
1303:
1302:
1300:
1298:
1287:
1278:
1277:
1275:
1273:10.7202/800302ar
1251:
1245:
1242:Internet Archive
1233:
1221:
1212:
1206:
1200:
1193:
1187:
1180:
1174:
1173:
1155:
1146:
1145:
1109:
1103:
1102:
1100:
1094:. Archived from
1093:
1085:
1079:
1078:
1073:. Archived from
1056:
1050:
1049:
1038:
1032:
1031:
1025:
1015:
1009:
1008:
1002:
992:
986:
985:
983:
976:
966:
957:
956:
947:
941:
940:
922:
916:
915:
906:
889:
870:
765:London Transport
757:Western Airlines
677:Sandford Fleming
531:American English
489:Computer support
414:decimal fraction
379:
373:
367:
361:
343:
337:
308:11:00 p.m.
300:10:00 p.m.
220:12:00 p.m.
210:11:00 a.m.
202:10:00 a.m.
104:
103:
71:
67:
63:
21:
3298:
3297:
3293:
3292:
3291:
3289:
3288:
3287:
3263:
3262:
3261:
3256:
3193:
3084:
3051:
3025:
2906:
2806:
2757:Coordinate time
2729:Time in physics
2723:
2697:
2691:
2682:
2554:
2531:
2522:
2492:
2487:
2459:
2450:Time immemorial
2397:
2354:
2315:Coordinate time
2286:
2240:Geological time
2216:
2199:Time management
2162:Generation time
2146:
2138:
2083:
2065:
1985:
1944:
1922:
1810:
1728:
1645:
1638:
1594:
1586:
1555:
1550:
1510:
1505:
1504:
1499:
1495:
1482:
1471:
1451:
1450:
1446:
1421:
1420:
1416:
1407:
1403:
1393:
1389:
1379:
1377:
1368:
1367:
1363:
1342:
1341:
1332:
1322:
1310:
1306:
1296:
1294:
1289:
1288:
1281:
1252:
1248:
1222:
1215:
1207:
1203:
1197:ÄtyĆiadvacetnĂk
1194:
1190:
1182:TomĂĄĆĄ VoĆĂĆĄek:
1181:
1177:
1170:
1156:
1149:
1110:
1106:
1098:
1091:
1087:
1086:
1082:
1060:"military time"
1058:
1057:
1053:
1040:
1039:
1035:
1023:
1017:
1016:
1012:
1000:
994:
993:
989:
981:
974:
968:
967:
960:
949:
948:
944:
937:
923:
919:
908:
907:
903:
898:
893:
892:
871:
867:
862:
857:
793:
743:The use of the
687:and a standard
614:
515:
491:
478:
472:
458:manual for the
442:
431:
422:dot on the line
381:
377:
375:
371:
369:
365:
363:
359:
347:
346:
338:
329:
319:
314:
292:9:00 p.m.
284:8:00 p.m.
276:7:00 p.m.
268:6:00 p.m.
260:5:00 p.m.
252:4:00 p.m.
244:3:00 p.m.
236:2:00 p.m.
228:1:00 p.m.
219:
218:12:00 noon
194:9:00 a.m.
186:8:00 a.m.
178:7:00 a.m.
170:6:00 a.m.
162:5:00 a.m.
154:4:00 a.m.
146:3:00 a.m.
138:2:00 a.m.
130:1:00 a.m.
121:
102:
94:medical history
69:
65:
61:
28:
23:
22:
15:
12:
11:
5:
3296:
3286:
3285:
3280:
3275:
3258:
3257:
3255:
3254:
3249:
3244:
3242:Time metrology
3239:
3234:
3229:
3224:
3219:
3218:
3217:
3207:
3201:
3199:
3198:Related topics
3195:
3194:
3192:
3191:
3186:
3181:
3176:
3171:
3166:
3161:
3156:
3151:
3146:
3141:
3136:
3131:
3126:
3121:
3116:
3111:
3106:
3101:
3095:
3093:
3086:
3085:
3083:
3082:
3077:
3072:
3067:
3061:
3059:
3053:
3052:
3050:
3049:
3044:
3039:
3033:
3031:
3027:
3026:
3024:
3023:
3018:
3013:
3008:
3003:
2998:
2993:
2988:
2983:
2978:
2973:
2968:
2963:
2958:
2953:
2948:
2943:
2937:
2932:
2927:
2922:
2916:
2914:
2908:
2907:
2905:
2904:
2899:
2894:
2889:
2887:Dialing scales
2884:
2879:
2874:
2873:
2872:
2862:
2857:
2852:
2847:
2842:
2837:
2832:
2827:
2822:
2816:
2814:
2808:
2807:
2805:
2804:
2799:
2794:
2789:
2784:
2779:
2774:
2769:
2764:
2759:
2754:
2749:
2744:
2739:
2733:
2731:
2725:
2724:
2722:
2721:
2719:Prime meridian
2716:
2711:
2709:Ephemeris time
2705:
2703:
2699:
2698:
2685:
2683:
2681:
2680:
2678:180th meridian
2675:
2670:
2665:
2660:
2655:
2650:
2645:
2640:
2635:
2630:
2625:
2620:
2615:
2610:
2605:
2600:
2595:
2590:
2585:
2580:
2575:
2574:
2573:
2562:
2560:
2556:
2555:
2553:
2552:
2547:
2542:
2536:
2533:
2532:
2521:
2520:
2513:
2506:
2498:
2489:
2488:
2486:
2485:
2475:
2464:
2461:
2460:
2458:
2457:
2452:
2447:
2442:
2435:
2430:
2425:
2420:
2415:
2409:
2407:
2403:
2402:
2399:
2398:
2396:
2395:
2393:Time geography
2390:
2385:
2383:Clock reaction
2380:
2379:
2378:
2368:
2362:
2360:
2356:
2355:
2353:
2352:
2347:
2342:
2337:
2332:
2327:
2322:
2317:
2312:
2307:
2302:
2296:
2294:
2288:
2287:
2285:
2284:
2279:
2274:
2273:
2272:
2267:
2262:
2257:
2252:
2247:
2236:
2234:
2225:
2218:
2217:
2215:
2214:
2201:
2196:
2191:
2186:
2185:
2184:
2182:time signature
2179:
2169:
2164:
2159:
2153:
2151:
2140:
2139:
2137:
2136:
2135:
2134:
2124:
2123:
2122:
2112:
2107:
2102:
2097:
2092:
2086:
2084:
2082:
2081:
2076:
2070:
2067:
2066:
2064:
2063:
2056:
2054:Temporal parts
2051:
2046:
2041:
2036:
2031:
2026:
2024:Eternal return
2021:
2016:
2011:
2009:Chronocentrism
2006:
2001:
1995:
1993:
1987:
1986:
1984:
1983:
1978:
1973:
1968:
1963:
1958:
1953:
1947:
1945:
1943:
1942:
1937:
1931:
1928:
1927:
1924:
1923:
1921:
1920:
1919:
1918:
1904:
1899:
1894:
1889:
1888:
1887:
1882:
1881:
1880:
1875:
1865:
1860:
1855:
1850:
1849:
1848:
1838:
1837:
1836:
1820:
1818:
1812:
1811:
1809:
1808:
1801:
1796:
1794:Hindu Panchang
1791:
1786:
1781:
1776:
1771:
1766:
1761:
1760:
1759:
1754:
1749:
1738:
1736:
1730:
1729:
1727:
1726:
1721:
1716:
1711:
1706:
1701:
1696:
1691:
1686:
1681:
1676:
1671:
1666:
1661:
1656:
1650:
1648:
1640:
1639:
1637:
1636:
1631:
1626:
1621:
1616:
1610:
1608:
1599:
1588:
1587:
1585:
1584:
1579:
1574:
1569:
1563:
1561:
1557:
1556:
1549:
1548:
1541:
1534:
1526:
1520:
1519:
1509:
1508:External links
1506:
1503:
1502:
1493:
1469:
1444:
1414:
1401:
1387:
1361:
1356:United Kingdom
1330:
1304:
1279:
1266:(1â2): 66â89.
1246:
1213:
1201:
1188:
1175:
1168:
1147:
1104:
1101:on 8 May 2016.
1080:
1051:
1033:
1010:
987:
958:
942:
935:
917:
900:
899:
897:
894:
891:
890:
864:
863:
861:
858:
856:
855:
850:
845:
840:
835:
830:
825:
820:
815:
810:
805:
800:
794:
792:
789:
714:Roman numerals
689:prime meridian
667:
666:
663:
613:
610:
609:
608:
605:
595:
588:
574:
567:
514:
511:
490:
487:
471:
468:
430:
427:
376:
370:
364:
358:
349:
348:
345:
344:
326:
325:
322:
321:
318:12:00 midnight
316:
315:00:00 next day
310:
309:
306:
302:
301:
298:
294:
293:
290:
286:
285:
282:
278:
277:
274:
270:
269:
266:
262:
261:
258:
254:
253:
250:
246:
245:
242:
238:
237:
234:
230:
229:
226:
222:
221:
216:
212:
211:
208:
204:
203:
200:
196:
195:
192:
188:
187:
184:
180:
179:
176:
172:
171:
168:
164:
163:
160:
156:
155:
152:
148:
147:
144:
140:
139:
136:
132:
131:
128:
124:
123:
118:
114:
113:
108:
101:
98:
26:
9:
6:
4:
3:
2:
3295:
3284:
3281:
3279:
3276:
3274:
3271:
3270:
3268:
3253:
3250:
3248:
3245:
3243:
3240:
3238:
3235:
3233:
3230:
3228:
3225:
3223:
3220:
3216:
3213:
3212:
3211:
3208:
3206:
3203:
3202:
3200:
3196:
3190:
3187:
3185:
3182:
3180:
3177:
3175:
3172:
3170:
3167:
3165:
3162:
3160:
3157:
3155:
3152:
3150:
3147:
3145:
3142:
3140:
3137:
3135:
3132:
3130:
3127:
3125:
3122:
3120:
3117:
3115:
3112:
3110:
3107:
3105:
3102:
3100:
3097:
3096:
3094:
3092:
3091:units of time
3087:
3081:
3080:Sidereal time
3078:
3076:
3073:
3071:
3068:
3066:
3065:Galactic year
3063:
3062:
3060:
3058:
3054:
3048:
3045:
3043:
3040:
3038:
3035:
3034:
3032:
3028:
3022:
3021:Weekday names
3019:
3017:
3014:
3012:
3011:Tropical year
3009:
3007:
3004:
3002:
2999:
2997:
2994:
2992:
2989:
2987:
2984:
2982:
2979:
2977:
2976:Intercalation
2974:
2972:
2969:
2967:
2964:
2962:
2959:
2957:
2954:
2952:
2949:
2947:
2944:
2942:(lunar Hijri)
2941:
2938:
2936:
2933:
2931:
2928:
2926:
2923:
2921:
2918:
2917:
2915:
2913:
2909:
2903:
2900:
2898:
2895:
2893:
2890:
2888:
2885:
2883:
2880:
2878:
2875:
2871:
2868:
2867:
2866:
2863:
2861:
2858:
2856:
2853:
2851:
2848:
2846:
2843:
2841:
2838:
2836:
2833:
2831:
2828:
2826:
2823:
2821:
2818:
2817:
2815:
2813:
2809:
2803:
2800:
2798:
2795:
2793:
2790:
2788:
2785:
2783:
2782:Time dilation
2780:
2778:
2775:
2773:
2770:
2768:
2765:
2763:
2760:
2758:
2755:
2753:
2750:
2748:
2745:
2743:
2740:
2738:
2735:
2734:
2732:
2730:
2726:
2720:
2717:
2715:
2712:
2710:
2707:
2706:
2704:
2700:
2695:
2689:
2679:
2676:
2674:
2671:
2669:
2666:
2664:
2661:
2659:
2656:
2654:
2651:
2649:
2646:
2644:
2641:
2639:
2636:
2634:
2631:
2629:
2626:
2624:
2621:
2619:
2618:24-hour clock
2616:
2614:
2613:12-hour clock
2611:
2609:
2606:
2604:
2601:
2599:
2596:
2594:
2591:
2589:
2586:
2584:
2581:
2579:
2576:
2572:
2569:
2568:
2567:
2564:
2563:
2561:
2557:
2551:
2548:
2546:
2543:
2541:
2538:
2537:
2534:
2530:
2526:
2519:
2514:
2512:
2507:
2505:
2500:
2499:
2496:
2484:
2476:
2474:
2466:
2465:
2462:
2456:
2453:
2451:
2448:
2446:
2443:
2441:
2440:
2436:
2434:
2431:
2429:
2426:
2424:
2421:
2419:
2416:
2414:
2411:
2410:
2408:
2404:
2394:
2391:
2389:
2386:
2384:
2381:
2377:
2374:
2373:
2372:
2371:Chronobiology
2369:
2367:
2364:
2363:
2361:
2357:
2351:
2348:
2346:
2343:
2341:
2338:
2336:
2333:
2331:
2328:
2326:
2323:
2321:
2318:
2316:
2313:
2311:
2308:
2306:
2305:Arrow of time
2303:
2301:
2298:
2297:
2295:
2293:
2289:
2283:
2280:
2278:
2277:Geochronology
2275:
2271:
2268:
2266:
2263:
2261:
2258:
2256:
2253:
2251:
2248:
2246:
2243:
2242:
2241:
2238:
2237:
2235:
2233:
2229:
2226:
2224:
2219:
2213:
2209:
2205:
2202:
2200:
2197:
2195:
2192:
2190:
2187:
2183:
2180:
2178:
2175:
2174:
2173:
2170:
2168:
2165:
2163:
2160:
2158:
2155:
2154:
2152:
2150:
2145:
2141:
2133:
2130:
2129:
2128:
2127:Wheel of time
2125:
2121:
2118:
2117:
2116:
2113:
2111:
2108:
2106:
2103:
2101:
2098:
2096:
2093:
2091:
2088:
2087:
2085:
2080:
2077:
2075:
2072:
2071:
2068:
2062:
2061:
2057:
2055:
2052:
2050:
2047:
2045:
2042:
2040:
2037:
2035:
2032:
2030:
2027:
2025:
2022:
2020:
2017:
2015:
2012:
2010:
2007:
2005:
2002:
2000:
1997:
1996:
1994:
1992:
1988:
1982:
1979:
1977:
1974:
1972:
1971:Periodization
1969:
1967:
1964:
1962:
1959:
1957:
1954:
1952:
1949:
1948:
1946:
1941:
1938:
1936:
1933:
1932:
1929:
1917:
1916:
1912:
1911:
1910:
1909:
1905:
1903:
1900:
1898:
1897:Digital clock
1895:
1893:
1890:
1886:
1883:
1879:
1876:
1874:
1871:
1870:
1869:
1866:
1864:
1861:
1859:
1856:
1854:
1851:
1847:
1844:
1843:
1842:
1839:
1835:
1832:
1831:
1830:
1827:
1826:
1825:
1822:
1821:
1819:
1817:
1813:
1807:
1806:
1802:
1800:
1797:
1795:
1792:
1790:
1787:
1785:
1782:
1780:
1777:
1775:
1772:
1770:
1767:
1765:
1762:
1758:
1755:
1753:
1750:
1748:
1745:
1744:
1743:
1740:
1739:
1737:
1735:
1731:
1725:
1722:
1720:
1717:
1715:
1712:
1710:
1707:
1705:
1702:
1700:
1697:
1695:
1692:
1690:
1687:
1685:
1682:
1680:
1677:
1675:
1674:Relative hour
1672:
1670:
1669:24-hour clock
1667:
1665:
1664:12-hour clock
1662:
1660:
1657:
1655:
1652:
1651:
1649:
1647:
1641:
1635:
1632:
1630:
1627:
1625:
1622:
1620:
1617:
1615:
1612:
1611:
1609:
1607:
1603:
1600:
1598:
1593:
1589:
1583:
1580:
1578:
1575:
1573:
1570:
1568:
1565:
1564:
1562:
1558:
1554:
1547:
1542:
1540:
1535:
1533:
1528:
1527:
1524:
1518:
1517:(free e-book)
1516:
1512:
1511:
1497:
1489:
1488:
1480:
1478:
1476:
1474:
1466:
1461:
1457:
1454:
1448:
1441:
1439:
1432:
1428:
1424:
1418:
1411:
1405:
1398:
1397:
1391:
1375:
1371:
1365:
1357:
1353:
1349:
1345:
1339:
1337:
1335:
1326:
1320:
1316:
1315:
1308:
1292:
1286:
1284:
1274:
1269:
1265:
1261:
1257:
1250:
1243:
1240: at the
1239:
1238:
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59:
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52:in which the
51:
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39:
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19:
3227:Decimal time
2956:Astronomical
2835:Complication
2830:Atomic clock
2617:
2445:Time capsule
2439:Tempus fugit
2437:
2359:Other fields
2058:
2039:Perdurantism
1961:Calendar era
1913:
1906:
1892:Cuckoo clock
1829:astronomical
1803:
1668:
1629:Unit of time
1560:Key concepts
1514:
1496:
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1394:
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1378:. Retrieved
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1096:the original
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979:the original
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818:Decimal time
773:Commonwealth
761:British Rail
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455:Style guides
451:
447:
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439:23:59 (film)
411:
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313:24:00 equals
82:
45:
43:
29:
3237:System time
3232:Metric time
2951:Solar Hijri
2877:Water clock
2860:Radio clock
2792:Time domain
2772:Proper time
2658:Leap second
2540:Chronometry
2455:Time travel
2433:System time
2340:Time domain
2325:Proper time
2149:use of time
2120:Father Time
2100:Immortality
2090:Ages of Man
2019:Endurantism
1976:Regnal year
1956:Big History
1885:water-based
1784:Solar Hijri
1694:Hexadecimal
1644:Measurement
1606:Chronometry
1592:Measurement
1438:Moore Field
1311:The London
1297:30 November
1211:, Orloj.eu.
1199:, Orloj.eu.
838:Metric time
785:New Zealand
783:as well as
734:World War I
533:, the term
403:leap second
100:Description
50:timekeeping
44:The modern
3267:Categories
3252:Timekeeper
3205:Chronology
3189:Millennium
3075:Precession
2981:Julian day
2802:T-symmetry
2663:Solar time
2633:Civil time
2157:Chronemics
2132:Kalachakra
2044:Presentism
2029:Eternalism
1935:Chronology
1873:mechanical
1824:Main types
1742:Main types
1169:0226155110
1120:(4): 185.
1114:Metrologia
896:References
767:, and the
685:time zones
627:(1443) in
523:USS Midway
474:See also:
56:runs from
3149:Fortnight
2996:Lunisolar
2986:Leap year
2920:Gregorian
2870:stopwatch
2845:Hourglass
2825:Astrarium
2742:Spacetime
2673:Time zone
2550:Metrology
2529:standards
2413:Leap year
2330:Spacetime
2204:Yesterday
2105:Dreamtime
2079:Mythology
1966:Deep time
1878:stopwatch
1853:hourglass
1834:astrarium
1764:Gregorian
1757:Lunisolar
1734:Calendars
1724:Time zone
1597:standards
1396:The Times
1325:The Times
1142:121852011
781:Australia
726:midsummer
691:. At the
600:(GMT) or
90:ambiguity
3210:Duration
3184:Saeculum
3164:Olympiad
3006:Solstice
2935:Holocene
2912:Calendar
2812:Horology
2603:ISO 8601
2598:ISO 31-1
2473:Category
2221:Time in
2212:Tomorrow
2074:Religion
2014:Duration
1981:Timeline
1915:Timeline
1714:Sidereal
1582:Eternity
872:See the
791:See also
407:ISO 8601
399:midnight
86:medicine
78:ISO 8601
58:midnight
38:Curitiba
3179:Century
3169:Lustrum
3099:Instant
2971:Equinox
2940:Islamic
2882:Sundial
2747:Chronon
2483:Commons
2406:Related
2320:Instant
2310:Chronon
2292:Physics
2232:Geology
2223:science
2095:Destiny
1940:History
1908:History
1863:sundial
1846:quantum
1789:Chinese
1779:Islamic
1689:Decimal
1684:Chinese
1646:systems
1572:Present
1460:El Paso
1380:27 July
1122:Bibcode
732:During
612:History
592:Juliett
573:three".
548:diurnal
70:24(:00)
68:, with
66:23(:59)
62:00(:00)
18:24-hour
3174:Decade
3129:Moment
3124:Minute
3119:Second
3089:Other
2946:Julian
2925:Hebrew
2571:offset
2423:Moment
2418:Memory
2270:period
1858:marine
1841:atomic
1816:Clocks
1774:Hebrew
1769:Julian
1704:Metric
1577:Future
1166:
1140:
1065:Lexico
933:
878:locale
640:Venice
378:
372:
366:
360:
3215:music
3154:Month
3114:Jiffy
3109:Shake
3104:Flick
3001:Solar
2991:Lunar
2966:Epact
2930:Hindu
2865:Watch
2820:Clock
2428:Space
2260:epoch
2250:chron
2208:Today
2177:tempo
2172:Music
2034:Event
1868:watch
1752:Lunar
1747:Solar
1719:Solar
1709:Roman
1699:Hindu
1314:Times
1138:S2CID
1099:(PDF)
1092:(PDF)
1024:(PDF)
1001:(PDF)
982:(PDF)
975:(PDF)
860:Notes
808:Clock
712:with
503:POSIX
499:macOS
445:day.
418:colon
339:See:
305:23:00
297:22:00
289:21:00
281:20:00
273:19:00
265:18:00
257:17:00
249:16:00
241:15:00
233:14:00
225:13:00
215:12:00
207:11:00
199:10:00
191:09:00
183:08:00
175:07:00
167:06:00
159:05:00
151:04:00
143:03:00
135:02:00
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3159:Year
3144:Week
3134:Hour
2588:DUT1
2527:and
2147:and
2110:KÄla
1805:List
1799:Maya
1595:and
1567:Past
1553:Time
1382:2023
1299:2012
1164:ISBN
931:ISBN
848:Time
755:and
720:The
708:The
544:p.m.
542:and
540:a.m.
497:and
483:GTFS
462:and
3139:Day
2265:era
2255:eon
2245:age
1624:TAI
1614:UTC
1352:Kew
1268:doi
1130:doi
623:'s
529:In
409:).
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