Miss Betsy Posted August 11, 2007 Share Posted August 11, 2007 This is an example of the time for UTC: Fri, 10 Aug 2007 20:43:44 +0000 (UTC) this is the time at the starting point. from wikipedia: Coordinated Universal Time (UTC) is a high-precision atomic time standard. UTC has uniform seconds defined by International Atomic Time (TAI), with leap seconds announced at irregular intervals to compensate for the earth's slowing rotation and other discrepancies. Leap seconds allow UTC to closely track Universal Time (UT), a time standard based not on the uniform passage of seconds, but on the Earth's angular rotation. Time zones around the world are expressed as positive or negative offsets from UTC. Local time is UTC plus the time zone offset for that location, plus an offset (typically +1) for daylight saving time, if in effect. As the zero-point reference, UTC is also referred to as Zulu time (Z). Or GMT Greenwich Mean Time (from dxing.com: This was formerly known as Greenwich mean time (GMT)....Greenwich mean time was based upon the time at the zero degree meridian that crossed through Greenwich, England. GMT became a world time and date standard because it was used by Britain's Royal Navy and merchant fleet during the nineteenth century. .... Despite the improvements in accuracy, however, the same principles used in GMT have been carried over into UTC....To convert UTC to local time, you have to add or subtract hours from it. For persons west of the zero meridian to the international date line (which includes all of North America), hours are subtracted from UTC to convert to local time. ") This is an example of how server admins communicate time: Monday, August 13, 2007 11:00 -0700 The first part - Monday August 13, 2007 11:00 - is local time. The second part is the local time offset from UTC. Monday, August 13, 2007 18:00 +0000(UTC) = Monday, August 13, 2007 18:00 -0700, that is UTC-7 hrs or local time+7hrs. To find the time for your local time, you add, or subtract, the offset to your local time offset. (You can google utc time zone and find various ways to find out what your offset is. If you get confused easily as I do, you can find the UTC time - in this case 18:00 and then add/subtract your local offset. But then, I am not a server admin who uses UTC and offsets daily.) Link to comment Share on other sites More sharing options...
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