Time Zone Offset from Universal Time

Coordinated Universal Time (UTC) is the system of time used in astronomy and meteorology. This is also equivalent to Zulu (Z) Time and is measured on the Prime Meridian (0 degrees longitude) in Greenwich, England.

UTC is not the same as GMT, as UTC is an ATOMIC time-scale, whereas GMT (strictly speaking UT1 [UT-one]) is tied to the rotation of the Earth in respect to the fictitious 'mean Sun'. UTC is, however, kept within 0.9 seconds of UT1, by virtue of leap seconds.

The abbreviation UTC is a language-independent international abbreviation, it is neither English nor French. It means both 'Coordinated Universal Time' and 'Temps Universel Coordonne[acute]'. For the term 'Coordinated Universal Time' (UTC), I refer you to the following websites:

You can also listen to NIST's short-wave Radio Station WWV on 2.5, 5, 10, 15 or 20MHz; or phone +1-303-499-7111 (a toll call to Boulder, Colorado) for accurate time of day and correct word order. Time is also available from Canadian Radio Station CHU on 3.3, 7.335 or 14.670 MHz (in both English and French).

If you are located in the United States, and want to convert from Universal Time Coordinates, or UTC to your local time, check out the table below.

CST or
MST or
Offset UTC-4 UTC-5 UTC-6 UTC-7 UTC-8

World GMT Table

ZoneCity or Area Zone Crosses
GMT-12 Eniwetok
GMT-11 Samoa
GMT-10 Hawaii
GMT-9 Alaska
GMT-8 PST, Pacific US
GMT-7 MST, Mountain US
GMT-6 CST, Central US
GMT-5 EST, Eastern US
GMT-4 Atlantic, Canada
GMT-3 Brazilia, Buenos Aries
GMT-2 Mid-Atlantic
GMT-1 Cape Verdes
GMT Greenwich Mean Time, Dublin
GMT+1 Berlin, Rome
GMT+2 Israel, Cairo
GMT+3 Moscow, Kuwait
GMT+4 Abu Dhabi, Muscat
GMT+5 Islamabad, Karachi
GMT+6 Almaty, Dhaka
GMT+7 Bangkok, Jakarta
GMT+8 Hong Kong, Beijing
GMT+9 Tokyo, Osaka
GMT+10 Sydney, Melbourne, Guam
GMT+11 Magadan, Soloman Is.
GMT+12 Fiji, Wellington, Auckland

Dan Bruton