Ut Time Now


What is UTC or GMT Time?

Universal Time or UT is the precise measure of time used as the basis for all civil time-keeping. Although their exact definitions differ, most readers can assume that Universal Time is equivalent to Greenwich Mean Time or GMT. Universal Time is actually based on the mean sidereal time as measured in Greenwich, England. We have an opportunity to make similar innovations for the aging process. The conversation must start now. Jacqueline Angel is a professor in the LBJ School of Public Affairs at The University of Texas at Austin. Andrew Scoggin is a Master of Public Affairs candidate at the LBJ School of Public Affairs at The University of Texas at Austin.

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). 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

TimeUtc time now

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


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Universal Time Coordinated

Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal

Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. Ucd midterm. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.

UTC representations, usage and related time zones

Ut Time Zone

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for UTC
  • Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • UCT
  • UTC
  • Universal
  • Zulu
Time zones with the GMT +0 offset:

Utc Time Now New York

  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone
  • GMT - GMT
  • +00 -