Utc Coordinated Universal Time

  • Coordinated Universal Time (UTC) is the international time standard. It is the current term for what was commonly referred to as GreenwichMeridian Time (GMT). Zero (0) hours UTC is midnight in Greenwich England, which lies on the zero longitudinal meridian. Universal time is based on a 24 hour clock, therefore, afternoon hours such as 4 pm UTC are expressed as16:00 UTC (sixteen hours, zero minutes).
  • Coordinated Universal Time (UTC), international basis of civil and scientific time, which was introduced on January 1, 1960. The unit of UTC is the atomic second, and UTC is widely broadcast by radio signals. These signals ultimately furnish the basis for the setting of all public and private clocks.
  1. Utc Coordinated Universal Time Country
  2. Utc Time Chart

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). 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'.

What time is utc conversion

Universal Time: Scale:00:0000:0500:1000:1500:2000:25. Is local time not Right? Input the time zone below to convert: » UTC to Worldwide Timezone Converters. Universal Time Offset: UTC +0.:: Local Time:: Search Time Zone Converters. Moon Phases Rise Set Time Worldwide.

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.

CoordinatedChart

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

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


Utc Coordinated Universal Time Country

Tropical Cyclone Forecasts
Tropical Cyclone Advisories
Tropical Weather Outlook
Audio/Podcasts
About Advisories
Marine Forecasts
Offshore Waters Forecasts
Gridded Forecasts
Graphicast
About Marine
Social Media
NHC on Facebook
Twitter
YouTube
NHC Blog:
'Inside the Eye'
Hurricane Preparedness
Preparedness Guide
Hurricane Hazards
Watches and Warnings
Marine Safety
Ready.gov Hurricanes en Español
Weather-Ready Nation
Emergency Management Offices
Research and Development
NOAA Hurricane Research Division
Joint Hurricane Testbed
Hurricane Forecast Improvement Program
Other Resources
Q & A with NHC
NHC/AOML Library Branch
NOAA: Hurricane FAQs
National Hurricane Operations Plan
WX4NHC Amateur Radio
What is (utc) coordinated universal time
NWS Forecast Offices
Weather Prediction Center
Storm Prediction Center
Ocean Prediction Center
Local Forecast Offices
Worldwide Tropical Cyclone Centers
Canadian Hurricane Centre
Joint Typhoon Warning Center
Other Tropical Cyclone Centers
WMO Severe Weather Info Centre

Utc Time Chart

US Dept of Commerce
National Oceanic and Atmospheric Administration
National Hurricane Center
11691 SW 17th Street
Miami, FL, 33165
[email protected]

Where is black onyx found. Central Pacific Hurricane Center
2525 Correa Rd
Suite 250
Honolulu, HI 96822
[email protected]

Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities

Coordinated Universal Time (UTC) is the international time standard.It is the current term for what was commonly referred to as GreenwichMeridian Time (GMT). Zero (0) hours UTC is midnight in Greenwich England, which lies on the zero longitudinal meridian. Universal time is based on a 24 hour clock, therefore, afternoon hours such as 4 pm UTC are expressed as16:00 UTC (sixteen hours, zero minutes).

Since a day is 24 hours long, the world may be split into 15 degree wide longitudinal bands (360 degrees/24 hours). Each band represents one hour. As an example, Huntsville Alabama is located at approximately 90 degrees west longitude, hence, local time lags UTC time by 6 hours (90/15, assuming Central Standard Time, 5 hours in Central Daylight Time). So, if the universal time is 14:30 UTC, United States Central Standard Time would be 8:30 am CST.

Illustrated below is a map which indicates the 15 degree wide longitude bands. Referring to the Huntsville example, count the lines west of the 0 meridian until you get near Alabama. There are 6 lines, hence 6 hours difference. Counting the bands may not give you an exact time for your location, as countries impose their own time regions due to geographic borders, but it should be close. Subtract time in west longitudes (negative values), add time in east longitudes (positive values).

Responsible Official: Responsible Official: Dr. Gary J. Jedlovec ([email protected] nasa.gov)
Page Curator: Paul J. Meyer ([email protected])

Last Updated: March 29, 1995