توقيت گرينتش المتوسط
(تم التحويل من Greenwich Mean Time)
توقيت گرينتش المتوسط Greenwich Mean Time (واختصاره GMT) هو التوقيت الشمسي حسب خط زوال گرينتش ويسمي أيضا بالتوقيت العالمي.
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