Utc Zone


Coordinated Universal Time (UTC) is used as the official world reference for time. Coordinated Universal Time replaced the use of Greenwich Mean Time (GMT) in 1972. You will often see time zones represented similar to UTC - 5h or GMT - 5h. UTC−06:00 — Central Time zone: a large area spanning from the Gulf Coast to the Great Lakes UTC−05:00 — Eastern Time zone: roughly a triangle covering all the states from the Great Lakes down to Florida and east to the Atlantic coast UTC−04:00 — Puerto Rico, the U.S.

What is UTC or GMT Time?

Weather observations around the world (including surface, radar, and other observations) are always taken with respect to a standard time. By convention, the world's weather communities use a twenty four hour clock, similar to 'military' time based on the 0° longitude meridian, also known as the Greenwich meridian.

Prior to 1972, this time was called Greenwich Mean Time (GMT) but is now referred to as Coordinated Universal Time orUniversal Time Coordinated (UTC). Pt time to utc. It is a coordinated time scale, maintained by the Bureau International des Poids etMesures (BIPM). It is also known as 'Z time' or 'Zulu Time'.

To obtain your local time here in the United States, you need to subtract a certain number of hours from UTC dependingon how many time zones you are away from Greenwich (England). The table below shows the standard difference from UTC time to local time.

The switch to daylight saving time does not affect UTC. It refers to time on the zero or Greenwich meridian, which is notadjusted to reflect changes either to or from Daylight Saving Time.

However, you need to know what happens during daylight saving time in the United States. In short, the local time is advanced one hour during daylight saving time. As an example, the Eastern Time zone difference from UTC is -4 hours during daylight saving time rather than -5 hours as it is during standard time.

Standard TimeDaylight Saving
UTCGuamHIAKPSTMSTCSTESTASTPDTMDTCDTEDT
Diff+10-10-9-8-7-6-5-4-7-6-5-4
0010a2p*3p*4p*5p*6p*7p*8p*5p*6p*7p*8p*
0111a3p*4p*5p*6p*7P*8p*9p*6p*7p*8p*9p*
0212N4p*5p*6p*7p*8p*9p*10p*7p*8p*9p*10p*
031p5p*6p*7p*8p*9p*10p*11p*8p*9p*10*11p*
042p6p*7p*8p*9p*10p*11p*12M9p*10p*11p*12M
053p7p*8p*9p*10p*11p*12M1a10p*11p*12M1a
064p8p*9p*10p*11p*12M1a2a11p*12M1a2a
075p9p*10p*11p*12M1a2a3a12M1a2a3a
086p10p*11p*12M1a2a3a4a1a2a3a4a
097p11p*12M1a2a3a4a5a2a3a4a5a
108p12M1a2a3a4a5a6a3a4a5a6a
119p1a2a3a4a5a6a7a4a5a6a7a
1210p2a3a4a5a6a7a8a5a6a7a8a
1311p3a4a5a6a7a8a9a6a7a8a9a
1412M%4a5a6a7a8a9a10a7a8a9a10
151a%5a6a7a8a9a10a11a8a9a10a11a
162a%6a7a8a9a10a11a12N9a10a11a12N
173a%7a8a9a10a11a12N1p10a11a12N1p
184a%8a9a10a11a12N1p2p11a12N1p2p
195a%9a10a11a12N1p2p3p12N1p2p3p
206a%10a11a12N1p2p3p4p1p2p3p4p
217a%11a12N1p2p3p4p5p2p3p4p5p
228a%12N1p2p3p4p5p6p3p4p5p6p
239a%1p2p3p4p5p6p7p4p5p6p7p
AST - Atlantic, AK - Alaska time, HI - Hawaii time, *The previous day, %The next day

Utc zone nigeria

Note: Credit given to NWS Southern Region Headquarters for the information above.


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