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Because the 400-year
Gregorian calendar cycle is a multiple of 7 days long, weekdays repeat every 400 years. The date XX00-02-28 must fall on a Monday, Sunday, Friday, or Wednesday. Only the first case is a leap year, followed by Tuesday the 29th. In the other three cases, the next day is March
663:
Until July 2004, the shortwave transmitter on 5 MHz operated continuously, while that on 15 MHz had an interruption from 35 to 40 minutes after the hour. Except for this, the broadcast repeated every 10 minutes.
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Each minute is divided into two blocks. The first 40 seconds are used to broadcast 76 bits of non-time information (weather, disaster warnings, etc.), and the last 20 seconds are used to broadcast the time, as follows:
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on the second, and encoding information via the time when it is restored. Uniquely, however, BSF uses five possible times to communicate two data bits per second, or a special synchronization mark:
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was transmitted by doubling some ticks: seconds :01 through :08 for DUT1 of +0.1 through +0.8 seconds, and seconds :09 through :16 for DUT1 from −0.1 through −0.8 seconds.
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so that confusion between 0.4 and 0.6 seconds of full power will only corrupt one data bit, and thus be detectable by the parity bits.
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This schedule repeated every ten minutes, on the hour, except for the previously mentioned 5-minute interruption on 15 MHz.
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Each tick was preceded and followed by 40 ms of silence. The remaining "background" was filled on a 10-minute schedule:
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The time code only includes two digits of year, but it is possible to handle the 400-year leap year cycle in the
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For the next 4 minutes (:x5:00 through :x8:59), no background tone was transmitted, only the ticks.
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For the first 5 minutes (:x0:00 through :x4:59), a background 1000 Hz tone was transmitted.
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During minute 9 (:x9:00 through :x9:59), voice call sign and time announcements were made in
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information, they are currently always broadcast as zero, as Taiwan does not observe DST.
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It is not currently clear if the time is transmitted during the minute it encodes (like
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similar to other low frequency time signal stations, reducing the carrier amplitude by
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and 15 MHz, but this was discontinued due to "low demand" as of July 1, 2004.
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transmitter owned by the
National Time and Frequency Standards Laboratory of the
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https://www.meinbergglobal.com/english/glossary/time-signal-transmitter.htm
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No reduced power and 1.0 s of full power means SYNC, a synchronization mark
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of 460 W. Each second, two bits of information are transmitted using
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671:. At the start of each minute, the tick was lengthened to 300 ms.
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Each second was marked with a 5 ms tick of 1000 Hz tone,
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0.8 seconds of reduced power and 0.2 s of full power means 10
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0.6 seconds of reduced power and 0.4 s of full power means 11
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0.4 seconds of reduced power and 0.6 s of full power means 01
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0.2 seconds of reduced power and 0.8 s of full power means 00
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The minute-of-day and day-of-century blocks each contain an
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range. It was launched on May 1, 1969 and is broadcast from
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International Earth
Rotation and Reference Systems Service
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The pulses are themselves transmitted once per second via
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The longwave transmitter of the station uses 1
717:"A Time Signal Station Project in Taiwan: Overview"
49:. Unsourced material may be challenged and removed.
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779:Two of the four towers holding up the antenna
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109:Learn how and when to remove this message
2610:International Commission on Stratigraphy
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737:"Standard Time and Frequency Broadcast"
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633:bit. Although bits are reserved for
207:The station used to also transmit on
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47:adding citations to reliable sources
18:
644:using the day of week information.
16:Time signal radio station in Taiwan
13:
715:Wu, Sz-Hsien (11 September 2014).
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2330:Discrete time and continuous time
785: (archived 24 September 2015)
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659:Shortwave transmitter (continued)
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2403:History of timekeeping devices
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238:, making 120 bits per minute.
1:
1023:Quasi-Zenith Satellite System
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739:(in Chinese). Archived from
134:Ministry of Economic Affairs
7:
2350:Gravitational time dilation
2186:Barycentric Coordinate Time
1845:Geological history of Earth
195:BSF Time Signal Transmitter
10:
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2836:Time signal radio stations
2206:Geocentric Coordinate Time
2191:Barycentric Dynamical Time
2129:Coordinated Universal Time
1197:Orders of magnitude (time)
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2360:Time-translation symmetry
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1908:Time translation symmetry
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144:information on 77.5
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232:effective radiated power
2620:Astronomical chronology
2593:Archaeology and geology
2300:Absolute space and time
2216:IERS Reference Meridian
2211:International Date Line
2122:International standards
1863:Absolute space and time
1514:Astronomical chronology
651:) or just before (like
230:of power, achieving an
58:"BSF" time service
1913:Time reversal symmetry
1217:Italian six-hour clock
269:Note that the data is
243:amplitude-shift keying
236:pulse-width modulation
184:25.00556°N 121.36500°E
2579:Weekday determination
2465:Sundial markup schema
1678:Time and fate deities
1623:The Unreality of Time
1562:A series and B series
2600:Chronological dating
2340:Theory of relativity
2201:Daylight saving time
1929:Chronological dating
1898:Theory of relativity
1242:Daylight saving time
820:Time signal stations
635:daylight saving time
222:Longwave transmitter
43:improve this article
2810:Time value of money
2605:Geologic time scale
2460:History of sundials
2325:Cosmological decade
2277:Greenwich Mean Time
2108:Orders of magnitude
1222:Thai six-hour clock
669:amplitude modulated
282:
189:25.00556; 121.36500
179: /
140:), which transmits
2785:Mental chronometry
2413:Marine chronometer
2265:Obsolete standards
1752:Rosy retrospection
1730:Mental chronometry
1554:Philosophy of time
690:Taiwanese Mandarin
642:Gregorian calendar
280:
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2633:Nuclear timescale
2315:Continuous signal
2054:
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1964:
1963:
1939:Circadian rhythms
1757:Tense–aspect–mood
1612:Temporal finitism
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1465:Grandfather clock
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975:Radio Data System
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2524:Dominical letter
2455:Equation of time
2418:Marine sandglass
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2231:Terrestrial Time
2088:Time measurement
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1951:Glottochronology
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1707:Human experience
1567:B-theory of time
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154:Zhongli District
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2292:Time in physics
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2013:Time immemorial
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1803:Geological time
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1762:Time management
1725:Generation time
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876:TDF time signal
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783:Wayback Machine
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2805:Time metrology
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2761:Related topics
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1617:Temporal parts
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1587:Eternal return
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1357:Hindu Panchang
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768:External links
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411:
408:
404:
403:
400:
396:
395:
390:
387:
384:
379:
376:
373:
366:
358:
357:
354:
351:
347:
346:
341:
338:
335:
332:
329:
326:
323:
320:
316:
315:
312:
309:
306:
304:
301:
298:
295:
293:
290:
287:
281:BSF time code
267:
266:
263:
260:
257:
254:
223:
220:
117:
116:
31:
29:
22:
15:
9:
6:
4:
3:
2:
2848:
2837:
2834:
2833:
2831:
2816:
2813:
2811:
2808:
2806:
2803:
2801:
2798:
2796:
2793:
2791:
2788:
2786:
2783:
2779:
2776:
2775:
2774:
2771:
2769:
2766:
2765:
2763:
2759:
2753:
2750:
2748:
2745:
2743:
2740:
2738:
2735:
2733:
2730:
2728:
2725:
2723:
2720:
2718:
2715:
2713:
2710:
2708:
2705:
2703:
2700:
2698:
2695:
2693:
2690:
2688:
2685:
2683:
2680:
2678:
2675:
2673:
2670:
2668:
2665:
2663:
2660:
2659:
2657:
2655:
2654:units of time
2650:
2644:
2643:Sidereal time
2641:
2639:
2636:
2634:
2631:
2629:
2628:Galactic year
2626:
2625:
2623:
2621:
2617:
2611:
2608:
2606:
2603:
2601:
2598:
2597:
2595:
2591:
2585:
2584:Weekday names
2582:
2580:
2577:
2575:
2574:Tropical year
2572:
2570:
2567:
2565:
2562:
2560:
2557:
2555:
2552:
2550:
2547:
2545:
2542:
2540:
2539:Intercalation
2537:
2535:
2532:
2530:
2527:
2525:
2522:
2520:
2517:
2515:
2512:
2510:
2507:
2505:(lunar Hijri)
2504:
2501:
2499:
2496:
2494:
2491:
2489:
2486:
2484:
2481:
2480:
2478:
2476:
2472:
2466:
2463:
2461:
2458:
2456:
2453:
2451:
2448:
2446:
2443:
2441:
2438:
2434:
2431:
2430:
2429:
2426:
2424:
2421:
2419:
2416:
2414:
2411:
2409:
2406:
2404:
2401:
2399:
2396:
2394:
2391:
2389:
2386:
2384:
2381:
2380:
2378:
2376:
2372:
2366:
2363:
2361:
2358:
2356:
2353:
2351:
2348:
2346:
2345:Time dilation
2343:
2341:
2338:
2336:
2333:
2331:
2328:
2326:
2323:
2321:
2318:
2316:
2313:
2311:
2308:
2306:
2303:
2301:
2298:
2297:
2295:
2293:
2289:
2283:
2280:
2278:
2275:
2273:
2270:
2269:
2267:
2263:
2258:
2252:
2242:
2239:
2237:
2234:
2232:
2229:
2227:
2224:
2222:
2219:
2217:
2214:
2212:
2209:
2207:
2204:
2202:
2199:
2197:
2194:
2192:
2189:
2187:
2184:
2182:
2181:24-hour clock
2179:
2177:
2176:12-hour clock
2174:
2172:
2169:
2167:
2164:
2162:
2159:
2157:
2154:
2152:
2149:
2147:
2144:
2142:
2139:
2135:
2132:
2131:
2130:
2127:
2126:
2124:
2120:
2114:
2111:
2109:
2106:
2104:
2101:
2100:
2097:
2093:
2089:
2082:
2077:
2075:
2070:
2068:
2063:
2062:
2059:
2047:
2039:
2037:
2029:
2028:
2025:
2019:
2016:
2014:
2011:
2009:
2006:
2004:
2003:
1999:
1997:
1994:
1992:
1989:
1987:
1984:
1982:
1979:
1977:
1974:
1973:
1971:
1967:
1957:
1954:
1952:
1949:
1947:
1944:
1940:
1937:
1936:
1935:
1934:Chronobiology
1932:
1930:
1927:
1926:
1924:
1920:
1914:
1911:
1909:
1906:
1904:
1901:
1899:
1896:
1894:
1891:
1889:
1886:
1884:
1881:
1879:
1876:
1874:
1871:
1869:
1868:Arrow of time
1866:
1864:
1861:
1860:
1858:
1856:
1852:
1846:
1843:
1841:
1840:Geochronology
1838:
1834:
1831:
1829:
1826:
1824:
1821:
1819:
1816:
1814:
1811:
1809:
1806:
1805:
1804:
1801:
1800:
1798:
1796:
1792:
1789:
1787:
1782:
1776:
1772:
1768:
1765:
1763:
1760:
1758:
1755:
1753:
1750:
1746:
1743:
1741:
1738:
1737:
1736:
1733:
1731:
1728:
1726:
1723:
1721:
1718:
1717:
1715:
1713:
1708:
1704:
1696:
1693:
1692:
1691:
1690:Wheel of time
1688:
1684:
1681:
1680:
1679:
1676:
1674:
1671:
1669:
1666:
1664:
1661:
1659:
1656:
1654:
1651:
1650:
1648:
1643:
1640:
1638:
1635:
1634:
1631:
1625:
1624:
1620:
1618:
1615:
1613:
1610:
1608:
1605:
1603:
1600:
1598:
1595:
1593:
1590:
1588:
1585:
1583:
1580:
1578:
1575:
1573:
1570:
1568:
1565:
1563:
1560:
1559:
1557:
1555:
1551:
1545:
1542:
1540:
1537:
1535:
1534:Periodization
1532:
1530:
1527:
1525:
1522:
1520:
1517:
1515:
1512:
1511:
1509:
1504:
1501:
1499:
1496:
1495:
1492:
1480:
1479:
1475:
1474:
1473:
1472:
1468:
1466:
1463:
1461:
1460:Digital clock
1458:
1456:
1453:
1449:
1446:
1442:
1439:
1437:
1434:
1433:
1432:
1429:
1427:
1424:
1422:
1419:
1417:
1414:
1410:
1407:
1406:
1405:
1402:
1398:
1395:
1394:
1393:
1390:
1389:
1388:
1385:
1384:
1382:
1380:
1376:
1370:
1369:
1365:
1363:
1360:
1358:
1355:
1353:
1350:
1348:
1345:
1343:
1340:
1338:
1335:
1333:
1330:
1328:
1325:
1321:
1318:
1316:
1313:
1311:
1308:
1307:
1306:
1303:
1302:
1300:
1298:
1294:
1288:
1285:
1283:
1280:
1278:
1275:
1273:
1270:
1268:
1265:
1263:
1260:
1258:
1255:
1253:
1250:
1248:
1245:
1243:
1240:
1238:
1237:Relative hour
1235:
1233:
1232:24-hour clock
1230:
1228:
1227:12-hour clock
1225:
1223:
1220:
1218:
1215:
1214:
1212:
1210:
1204:
1198:
1195:
1193:
1190:
1188:
1185:
1183:
1180:
1178:
1175:
1174:
1172:
1170:
1166:
1163:
1161:
1156:
1152:
1146:
1143:
1141:
1138:
1136:
1133:
1131:
1128:
1127:
1125:
1121:
1117:
1110:
1105:
1103:
1098:
1096:
1091:
1090:
1087:
1075:
1072:
1070:
1067:
1065:
1062:
1060:
1057:
1055:
1052:
1050:
1047:
1045:
1042:
1040:
1037:
1036:
1034:
1030:
1024:
1021:
1019:
1016:
1014:
1011:
1009:
1006:
1004:
1001:
999:
996:
994:
991:
990:
988:
986:
982:
976:
973:
972:
970:
968:
964:
960:
956:
950:
947:
945:
942:
940:
937:
935:
932:
930:
927:
925:
922:
920:
917:
915:
912:
910:
907:
905:
902:
901:
899:
897:
893:
887:
884:
882:
881:Time from NPL
879:
877:
874:
872:
869:
867:
864:
862:
859:
857:
854:
852:
849:
847:
844:
842:
839:
837:
834:
833:
831:
829:
825:
821:
814:
809:
807:
802:
800:
795:
794:
791:
784:
780:
777:
775:
772:
771:
757:
743:on 2017-04-24
742:
738:
732:
718:
711:
709:
704:
697:
691:
687:
684:
681:
680:
679:
676:
674:
670:
665:
656:
654:
650:
645:
643:
638:
636:
632:
618:
592:
584:
565:
557:
531:
517:
503:
495:
481:
473:
454:
446:
427:
419:
405:
397:
359:
348:
317:
313:
310:
307:
302:
299:
296:
291:
288:
285:
284:
278:
274:
272:
264:
261:
258:
255:
252:
251:
250:
244:
239:
237:
233:
229:
219:
216:
210:
205:
201:
163:
159:
155:
151:
147:
143:
139:
135:
131:
127:
123:
113:
110:
102:
91:
88:
84:
81:
77:
74:
70:
67:
63:
60: –
59:
55:
54:Find sources:
48:
44:
38:
37:
32:This article
30:
26:
21:
20:
2790:Decimal time
2519:Astronomical
2398:Complication
2393:Atomic clock
2008:Time capsule
2002:Tempus fugit
2000:
1922:Other fields
1621:
1602:Perdurantism
1524:Calendar era
1476:
1469:
1455:Cuckoo clock
1392:astronomical
1366:
1192:Unit of time
1123:Key concepts
1038:
845:
756:
745:. Retrieved
741:the original
731:
720:. Retrieved
695:
677:
666:
662:
646:
639:
628:
623:Day of week
528:Date parity
522:Time parity
275:
268:
240:
225:
206:
121:
120:
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
2800:System time
2795:Metric time
2514:Solar Hijri
2440:Water clock
2423:Radio clock
2355:Time domain
2335:Proper time
2221:Leap second
2103:Chronometry
2018:Time travel
1996:System time
1903:Time domain
1888:Proper time
1712:use of time
1683:Father Time
1663:Immortality
1653:Ages of Man
1582:Endurantism
1539:Regnal year
1519:Big History
1448:water-based
1347:Solar Hijri
1257:Hexadecimal
1207:Measurement
1169:Chronometry
1155:Measurement
631:even parity
552:Leap second
370:information
343:Day of week
187: /
174:121°21′54″E
164:located at
130:time signal
2815:Timekeeper
2768:Chronology
2752:Millennium
2638:Precession
2544:Julian day
2365:T-symmetry
2226:Solar time
2196:Civil time
1720:Chronemics
1695:Kalachakra
1607:Presentism
1592:Eternalism
1498:Chronology
1436:mechanical
1387:Main types
1305:Main types
747:2018-07-16
722:2017-04-21
700:References
372:(76 bits)
334:Always 01
325:Always 00
271:Gray coded
247:10 dB
193: (
99:March 2015
69:newspapers
2712:Fortnight
2559:Lunisolar
2549:Leap year
2483:Gregorian
2433:stopwatch
2408:Hourglass
2388:Astrarium
2305:Spacetime
2236:Time zone
2113:Metrology
2092:standards
1976:Leap year
1893:Spacetime
1767:Yesterday
1668:Dreamtime
1642:Mythology
1529:Deep time
1441:stopwatch
1416:hourglass
1397:astrarium
1327:Gregorian
1320:Lunisolar
1297:Calendars
1287:Time zone
1160:standards
1064:Radio VNG
985:Satellite
896:Shortwave
581:(unused)
209:shortwave
171:25°0′20″N
162:T-antenna
2830:Category
2773:Duration
2747:Saeculum
2727:Olympiad
2569:Solstice
2498:Holocene
2475:Calendar
2375:Horology
2166:ISO 8601
2161:ISO 31-1
2036:Category
1784:Time in
1775:Tomorrow
1637:Religion
1577:Duration
1544:Timeline
1478:Timeline
1277:Sidereal
1145:Eternity
929:ROA Time
828:Longwave
554:warning
314:Meaning
303:Meaning
292:Meaning
160:using a
158:Taichung
150:longwave
126:callsign
2742:Century
2732:Lustrum
2662:Instant
2534:Equinox
2503:Islamic
2445:Sundial
2310:Chronon
2046:Commons
1969:Related
1883:Instant
1873:Chronon
1855:Physics
1795:Geology
1786:science
1658:Destiny
1503:History
1471:History
1426:sundial
1409:quantum
1352:Chinese
1342:Islamic
1252:Decimal
1247:Chinese
1209:systems
1135:Present
1032:Defunct
1008:Galileo
1003:GLONASS
781:at the
615:Marker
600:Marker
381:Minutes
213:5
148:in the
128:of the
124:is the
83:scholar
2737:Decade
2692:Moment
2687:Minute
2682:Second
2652:Other
2509:Julian
2488:Hebrew
2134:offset
1986:Moment
1981:Memory
1833:period
1421:marine
1404:atomic
1379:Clocks
1337:Hebrew
1332:Julian
1267:Metric
1140:Future
993:BeiDou
924:JN53DV
914:HD2IOA
539:Day of
464:00–23
443:00–99
383:00–59
311:Weight
308:Second
300:Weight
297:Second
289:Weight
286:Second
138:Taiwan
85:
78:
71:
64:
56:
2778:music
2717:Month
2677:Jiffy
2672:Shake
2667:Flick
2564:Solar
2554:Lunar
2529:Epact
2493:Hindu
2428:Watch
2383:Clock
1991:Space
1823:epoch
1813:chron
1771:Today
1740:tempo
1735:Music
1597:Event
1431:watch
1315:Lunar
1310:Solar
1282:Solar
1272:Roman
1262:Hindu
1018:IRNSS
998:DORIS
856:DCF77
653:DCF77
543:1–31
541:month
462:Hours
394:1–12
392:Month
368:Other
90:JSTOR
76:books
2722:Year
2707:Week
2697:Hour
2151:DUT1
2090:and
1710:and
1673:Kāla
1368:List
1362:Maya
1158:and
1130:Past
1116:Time
1069:WWVL
1054:OLB5
949:YVTO
944:WWVH
886:WWVB
851:Beta
673:DUT1
649:WWVB
612:SYNC
597:SYNC
441:Year
345:0–6
142:time
62:news
2702:Day
1828:era
1818:eon
1808:age
1187:TAI
1177:UTC
1074:Y3S
1059:OMA
1049:NAA
1044:HBG
1039:BSF
967:UHF
959:VHF
939:WWV
934:RWM
919:HLA
909:CHU
904:BPM
871:RTZ
866:RBU
861:JJY
846:BSF
841:BPL
836:BPC
655:).
609::59
603::49
594::39
579:DST
573::58
567::48
546::57
533::47
511::56
505::46
489::55
483::45
470:16
467::54
456::44
451:32
435::53
429::43
413::52
407::42
399:16
386::51
375::41
365::38
361::01
337::50
328::40
319::00
215:MHz
156:in
146:kHz
122:BSF
45:by
2832::
2146:ΔT
2141:UT
1773:–
1769:–
1182:UT
963:FM
761:1.
707:^
606:1
589:0
586:2
570:4
562:?
559:8
536:16
525:P2
519:P1
514:1
508:1
500:2
497:2
492:4
486:4
478:8
475:8
459:16
448:1
438:64
432:2
424:1
421:4
416:2
410:8
402:4
378:32
356:1
353:1
350:0
228:kW
204:.
2080:e
2073:t
2066:v
1108:e
1101:t
1094:v
965:/
961:/
812:e
805:t
798:v
750:.
725:.
692:.
620:4
576:0
549:?
389:8
363:︙
340:2
331:0
322:0
197:)
136:(
112:)
106:(
101:)
97:(
87:·
80:·
73:·
66:·
39:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
