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sets shortly after 19:00 in much of the eastern part of the country (in Tokyo, the latest sunset of the entire year is 19:01, from 26 June to 1 July, despite being at 35°41'N latitude). Since 2000, a few local governments and commerce departments have promoted unmandated hour-earlier work schedule experiments during the summer without officially resetting clocks.
423:(DST) from the first Saturday in May at 24:00 to the second Saturday in September at 24:00 (with the exception of 1949, when the spring forward transition was the first Saturday in April at 24:00). More recently there have been efforts to restore daylight saving time in Japan but these have not succeeded.
564:
region is particularly in favour of this movement because daylight starts as early as 03:30 (in standard time) there in summer due to its high latitude and its location near the eastern edge of the time zone, with much of the region's solar time actually closer to UTC+10:00. Because of this, the sun
536:
This map shows the difference between legal time and local mean time in Japan and its neighborhood. Eastern part of
Hokkaido is over 30 minutes behind and western part of Ryukyu islands is over 30 minutes ahead of local solar time as a single standard time offset of UTC+09:00 is observed in whole
725:
557:. In 1952, three weeks before the occupation ended, the Japanese government, which had been granted increased powers, abolished daylight saving time, and the Allied occupation authorities did not interfere. Since then, DST has never been officially implemented nationwide in Japan.
987:
300:(UTC had not been established yet). In the ordinance, the first clause mentions GMT, the second defines east longitude and west longitude and the third says the standard time zone would be in effect from 1888. The city of
910:
Yoshiyuki
Shimoda; Takahiro Asahia; Ayako Taniguchia; Minoru Mizuno (2007). "Evaluation of city-scale impact of residential energy conservation measures using the detailed end-use simulation model".
545:(122°56′E). It makes the sun rise before 04:00 at the summer solstice in much of the Hokkaido region and set shortly after 19:00 at the summer solstice in much of the eastern part of the country.
226:
and because of this, a train that departed from Tokyo would arrive at Osaka 20 minutes behind the time in Tokyo. In 1886, Ordinance 51 was issued in response to this problem, which stated:
430:
proposed permanently moving the country's time zone ahead by 2 hours to better align global markets and make Japan's stock market to be the first to open in the world at any given time.
218:. As modern transportation methods, such as trains, were adopted, this practice became a source of confusion. For example, there is a difference of about 5 degrees longitude between
591:
residences by 0.13%, with a 0.02% saving due to lighting more than outweighed by a 0.15% increase due to cooling costs; the simulation did not examine non-residential buildings.
261:
400:, was abolished by Ordinance 529 in 1937 and replaced by Central Standard Time in those areas. Territories occupied by Japan during World War II, including
619:. The Japanese government has decided to consider this proposal. However, there has been no specific discussion of this proposal for more than ten years.
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Starting in the late 1990s, a movement to reinstate DST in Japan gained some popularity, aiming at saving energy and increasing recreational time. The
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Longitudes are calculated using the prime meridian, counting 180 degrees either east or west. Positive degrees are east, negative degrees are west.
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There is a difference between GMT and UTC which can be as much as 0.9 seconds. Japan now legally uses an atomic clock synchronized to UTC.
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made a significant effort to introduce daylight saving time, but was ultimately unsuccessful. However, it is not clear that DST would
1287:
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17:
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159:). Japan does not observe daylight saving time, though its introduction has been debated on several occasions. During
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611:) Japan Standard Time at an industry competitiveness conference. Its purpose is to enhance the influence of the
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1307:
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era (1868–1912), each local region had its own time zone in which noon was when the sun was exactly at its
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From 1948 to 1952, Japan observed daylight saving time (DST) between May and
September every year. The
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is expected to propose that the
Japanese government begin studying DST in an attempt to help combat
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1029:
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in 1895, Ordinance 167 (pictured on the right) was issued to rename the previous
Standard Time to
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in Japan. A 2007 simulation estimated that introducing DST to Japan would increase energy use in
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755:"Outline of the report on the National Conference on the Global Environment and Summer Time"
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of GMT+08:30 continued to be used until 1912, when it was changed to
Central Standard Time.
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The two-time-zone system was implemented in Japan between
January 1896 and September 1937:
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Ordinance 51 (on the precise calculation of time using the Prime
Meridian) – July 13, 1886
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will be set as the standard meridian for all of Japan, allowing precise times to be fixed.
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From
October 1937, Central Standard Time was also used in western Okinawa and Taiwan.
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is located exactly on 135 degrees east longitude and subsequently became known as
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757:. The Energy Conservation Center, Japan. September 1998. Archived from
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Imperial
Ordinance 167 issued on December 27, Meiji 28 (1895)
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country of Japan, even in its easternmost territory,
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30:"Japan Time" redirects here. For the TV series, see
800:"Gov't considers setting clock ahead by two hours"
568:The Council on Economic and Fiscal Policy of the
1399:
527:
870:Thousands in Japan Adopt "Daylight Saving" Plan
852:Daylight saving: Is it finally time to convert?
780:Daylight saving: Is it finally time to convert?
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986:has original text related to this article:
727:昭和十二年勅令第五百二十九號（明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件）
1015:
1001:
541:(153°59′E) and its westernmost territory,
507:
952:(in Japanese). 2013-05-22. Archived from
823:
392:Western Standard Time, which was used in
163:, the time zone was often referred to as
882:"Panel to call for daylight saving time"
531:
516:contains one zone for Japan in the file
256:
93:
699:明治二十一年一月一日ヨリ東経百三十五度ノ子午線ノ時ヲ以テ本邦一般ノ標準時ト定ム
14:
1400:
595:Possibility of adjusting the time zone
88:DST is not observed in this time zone.
996:
693:英国グリニツチ天文台子午儀ノ中心ヲ経過スル子午線ヲ以テ経度ノ本初子午線トス
473:Western Okinawa and Taiwan (see also
170:Japan Standard Time is equivalent to
696:経度ハ本初子午線ヨリ起算シ東西各百八十度ニ至リ東経ヲ正トシ西経ヲ負トス
663:Time and Date (13 September 2020).
553:imposed this policy as part of the
494:Japan mainland and Korea (see also
426:In May 2013, former Tokyo governor
24:
365:as the time zone for the Japanese
25:
1424:
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824:Schreiber, Mark (28 April 2002).
434:Time zones of the Japanese Empire
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615:market by starting early in the
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874:
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826:"Japan's 'long-awaited spring'"
184:Eastern Indonesia Standard Time
1339:British Indian Ocean Territory
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686:明治十九年勅令第五十一号（本初子午線経度計算方及標準時ノ件）
679:
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578:Japanese former Prime Minister
13:
1:
665:"Current Local Time in Japan"
649:
607:proposed a two-hour advance (
528:Daylight saving time in Japan
946:"日本の標準時「2時間早く」 都知事が提案、政府検討へ"
932:10.1016/j.energy.2007.01.007
888:. 2007-06-02. Archived from
798:Preston Phro (24 May 2013).
373:, as well as Taiwan and its
262:Akashi Municipal Planetarium
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188:East-Timorese Standard Time
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72:00:39, 25 September 2024
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713:明治二十八年勅令第百六十七號（標準時ニ關スル件）
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155:, 9 hours ahead of UTC (
1349:Cocos (Keeling) Islands
514:IANA time zone database
508:IANA time zone database
275:According to this, the
617:Tokyo financial market
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415:Between 1948 and 1951
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32:Japan Time (TV series)
18:Japanese Standard Time
860:, 28 June 2011, p. 3.
788:, 28 June 2011, p. 3.
599:On May 22, 2013, the
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485:Central Standard Time
464:Western Standard Time
342:Western Standard Time
321:Central Standard Time
260:
240:Greenwich Observatory
228:
97:
1263:United Arab Emirates
689:（明治十九年七月十三日勅令第五十一号）
421:daylight saving time
340:and establish a new
317:annexation of Taiwan
248:On January 1, 1888,
172:Korean Standard Time
1290:limited recognition
924:2007Ene....32.1617S
741:昭和二十三年法律第二十九号（夏時刻法）
496:Korea Standard Time
387:Korea Standard Time
383:under Japanese rule
165:Tokyo Standard Time
103:Japan Standard Time
40:Japan Standard Time
613:Japanese financial
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1328:Dependencies
1258:Turkmenistan
1223:Saudi Arabia
1023:Time in Asia
988:明治十九年勅令第五十一号
958:. Retrieved
954:the original
949:
940:
915:
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905:
894:. Retrieved
890:the original
885:
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836:13 September
834:. Retrieved
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807:. Retrieved
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763:. Retrieved
759:the original
749:
743:- Wikisource
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729:- Wikisource
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715:- Wikisource
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670:12 September
668:. Retrieved
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67:Current time
1387:Asia portal
1288:States with
1208:Philippines
1148:South Korea
1143:North Korea
1038:Afghanistan
857:Japan Times
830:Japan Times
804:Japan Today
785:Japan Times
605:Naoki Inose
444:Time offset
428:Naoki Inose
265: [
216:culmination
210:Before the
180:North Korea
1413:Time zones
1402:Categories
1268:Uzbekistan
1243:Tajikistan
1158:Kyrgyzstan
1138:Kazakhstan
1058:Bangladesh
1048:Azerbaijan
984:Wikisource
960:2019-12-19
896:2007-06-02
765:2007-04-14
650:References
581:Shinzō Abe
522:Asia/Tokyo
192:Palau Time
52:UTC offset
1354:Hong Kong
1308:Palestine
1233:Sri Lanka
1228:Singapore
1108:Indonesia
644:UTC+09:00
482:GMT+09:00
461:GMT+08:00
419:observed
402:Singapore
385:in 1910,
315:With the
157:UTC+09:00
149:time zone
61:UTC+09:00
46:Time zone
1377:Category
1298:Abkhazia
1248:Thailand
1203:Pakistan
1183:Mongolia
1178:Maldives
1173:Malaysia
1073:Cambodia
623:See also
562:Hokkaido
543:Yonaguni
520:, named
518:zone.tab
450:Japanese
377:. While
289:hyōjunji
1273:Vietnam
1188:Myanmar
1168:Lebanon
1098:Georgia
1053:Bahrain
1043:Armenia
920:Bibcode
832:. Tokyo
809:24 June
603:(then)
456:Region
398:Okinawa
206:History
1318:Taiwan
1253:Turkey
1218:Russia
1153:Kuwait
1133:Jordan
1123:Israel
1083:Cyprus
1068:Brunei
1063:Bhutan
912:Energy
609:UTC+11
406:Malaya
394:Taiwan
367:Miyako
302:Akashi
200:Russia
194:, and
1359:Macau
1278:Yemen
1238:Syria
1213:Qatar
1193:Nepal
1128:Japan
1103:India
1093:Egypt
1078:China
589:Osaka
488:中央標準時
467:西部標準時
381:came
379:Korea
348:西部標準時
327:中央標準時
269:]
224:Osaka
220:Tokyo
212:Meiji
153:Japan
132:中央標準時
124:, or
109:日本標準時
1198:Oman
1163:Laos
1118:Iraq
1113:Iran
950:朝日新聞
838:2020
811:2020
672:2020
512:The
447:Name
404:and
369:and
234:The
222:and
143:JCST
1330:and
928:doi
854:",
782:",
639:JJY
361:at
304:in
298:GMT
283:標準時
202:).
182:),
151:in
120:JST
82:DST
74:JST
57:JST
1404::
948:.
926:.
916:32
914:.
884:.
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576:.
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477:)
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351:,
330:,
286:,
267:ja
190:,
186:,
174:,
167:.
141:,
135:,
118:,
112:,
1016:e
1009:t
1002:v
963:.
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930::
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