توقيت گرينتش المتوسط
توقيت گرينتش المتوسط Greenwich Mean Time (واختصاره GMT) هو التوقيت الشمسي حسب خط زوال گرينتش ويسمي أيضا بالتوقيت العالمي.
![](/w/images/thumb/1/1b/Greenwich_clock.jpg/300px-Greenwich_clock.jpg)
ساعة گرينتش مع القياسات المعيارية
![](/w/images/thumb/7/71/Time_zones_of_Europe.svg/300px-Time_zones_of_Europe.svg.png)
Time in Europe: pale colours indicate where standard time is observed all year; dark colours indicate where a summer time is observed
![](/w/images/thumb/0/0a/TimeZones-Africa.svg/300px-TimeZones-Africa.svg.png)
مناطق التوقيت في أفريقيا:
a The islands of Cape Verde are to the west of the African mainland.
b Mauritius and the Seychelles are to the east and north-east of Madagascar respectively.
-01:00 | Cape Verde Time[a] |
±00:00 | Greenwich Mean Time |
+01:00 | |
+02:00 | |
+03:00 | East Africa Time |
+04:00 |
b Mauritius and the Seychelles are to the east and north-east of Madagascar respectively.
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التاريخ
توقيت گرينتش في التشريع
منطقة التوقيت
العيوب
انظر أيضا
- توقيت عالمي
- خط زوال گرينتش
- 24-hour watch — 24-hour wristwatch
- BPM (time service) — China's national time signal service
- CHU (radio station) — Canada's time signal service
- DCF77 — Germany's time signal service
- Marine chronometer — synchronised with GMT, and used by ships to calculate their longitude
- Sandringham Time
- Swatch Internet Time — alternative, decimal measure of time
- VNG — Australia's national time signal service
- WWV (radio station) — United States' time signal service
ملاحظات
المصادر
- مؤمن, عبد الأمير (2006). قاموس دار العلم الفلكي. بيروت، لبنان: دار العلم للملايين.
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(help) - Dumortier, J, Hannelore, D, & Loncke, M. (n.d.). "Legal Aspects of Trusted Time services in Europe". AMANO. Retrieved 8 July 2009.
- Howse, D. (1997). Greenwich time and the longitude. London: Philip Wilson.
- Interpretation Act, R.S.C. 1985, c. I-21. (2005). CanLII. (Canadian statute)
- Interpretation Act 1978. UK Law Statute Database. (UK statute)
- Interpretation Act 2005. British and Irish Legal Information Institute. (Irish statute)
- Myers, J. (2007). History of legal time in Britain. Retrieved 4, January 2008.
- Seago, J.H., & Seidelmann, P. K. (c. 2001). National Legal Requirements for Coordinating with Universal Time. Steve Allen of University of California Observatories. Retrieved 8 July 2009.
- Six pip salute. BBC News. Retrieved 9 July 2009.
- Standard Time Act, 1968. Irish Statute Book. Office of the Attorney General. (Irish statute)
- Standard Time (Amendment) Act, 1971. British and Irish Legal Information Institute. (Irish statute)
وصلات خارجية
- Greenwich Mean Time
- World Time Zone Map with current time
- The World Clock - Local times around the world by city
- NIST — World Time Scales
- International Earth Rotation and Reference Systems Service
- World Clock — Current Local Times
- Royal Observatory Greenwich
- The original BBC World Service GMT time signal in mp3 format