GMT was established by international conference in as International Time. Greenwich England is, by definition, in the middle of Time Zone 0, the prime meridian. UTC time is the local time at Greenwich England. Daylight savings time adds 1 hour to the local standard real time. Twenty four hour time does not use "am" or "pm", but courts hours from midnight 0 hours to 11 pm 23 hours.
Daylight savings time DST is used in the summer months in some regions. Earthquakes, melting ice sheets and natural oscillations in our planet's motion can cause changes of a few fractions of a second in the amount of time it takes the Earth to spin on its axis, according to NASA. UTC incorporates measurements of the Earth's rotation as well as averaged readings from around atomic clocks around the world, according to the website timeanddate.
The U. Army, which divides up the Earth into time zones named after letters of the alphabet, refers to UTC as Zulu time , since it falls in the Z time zone, and Zulu is the code word for that letter in the International Radiotelephony Spelling Alphabet. Today, Greenwich Mean Time is not considered a standard anymore yet it is the label of one of the 24 total time zones on Earth, used by countries in Africa, Western Europe and the UK during the winter season. This list provides the UTC time offsets from the western to eastern-most time zones.
You'll be able to see the time difference -- in hours and minutes -- between the different territories and Coordinated Universal Time UTC. Current Time In. What Is UTC? Wake Island U. Subscribe to our Newsletter GO Please wait Please check your inbox for confirmation of your subscription. Add Clock To Your Website.
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