![]() ![]() Watch: Earth spins through a full year in this time-lapse video.Find out what the time difference is between UTC and your time zone, using this chart from the National Hurricane Center.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. The acronym came about as a compromise between English and French speakers: Coordinated Universal Time would normally be abbreviated as CUT, and the French name, Temps Universel Coordonné, would be TUC. You might be wondering why UTC is the abbreviation for Coordinated Universal Time. UTC incorporates measurements of the Earth's rotation as well as averaged readings from around 400 atomic clocks around the world, according to the website. In 1967, a committee at the United Nations officially adopted UTC as a standard that's more accurate than GMT for setting clocks. 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. The time standard against which clocks were set then became known as Greenwich Mean Time (GMT).īut by the middle of the 20th century, the new technology of the atomic clock, which can measure time with incredible accuracy, was showing that the Earth's rotation actually varied slightly from day to day. At the conference, 41 delegates from 25 countries chose to set the prime meridian - the zero point for longitude lines - as passing through Greenwich, England, according to . Your devices local time is shown at the lower left corner, as well as UTC time (the 0 time at the center of map). But there was no universally agreed-upon equivalent for lines of longitude, which run north to south. Lines of latitude, which run east to west around our planet, had always been measured from the equator. JavaScript does not support leap seconds.In 1884, members met at the International Meridian Conference in Washington, D.C., to discuss a way to synchronize clocks around the globe. Some browsers use the current DST (Daylight Saving Time) rules for all dates in history. ![]() Please note: All tools on this page are based on the date & time settings of your computer and use JavaScript to convert times. ![]() More date related programming examples: What's the current week number? - What's the current day number? Thanks to everyone who sent me corrections and updates! Works for Windows PowerShell v1 and v2Ĭommand line: perl -e "print scalar(localtime( epoch))" (If Perl is installed) Replace 'localtime' with 'gmtime' for GMT/UTC time. Math.floor(new Date().getTime()/1000.0) The getTime method returns the time in milliseconds.ĭATETIME() -, then use: get-epochDate 1520000000. SELECT dbinfo('utc_current') FROM sysmaster:sysdual SELECT (CAST(SYS_EXTRACT_UTC(SYSTIMESTAMP) AS DATE) - TO_DATE('','DD/MM/YYYY')) * 24 * 60 * 60 FROM DUAL SELECT unix_timestamp(now()) More MySQL examples (version 18+), older versions: calendar:datetime_to_gregorian_seconds(calendar:universal_time())-719528*24*3600. timeIntervalSince1970] (returns double) or NSString *currentTimestamp = timeIntervalSince1970]] ĭouble now = std::chrono::duration_cast(std::chrono::system_clock::now().time_since_epoch()).count() Įpoch := DateTimetoUnix(Now) Tested in Delphi 2010.Įrlang:system_time(seconds). Long epoch = System.currentTimeMillis()/1000 Returns epoch in seconds.ĭ() (.NET Framework 4.6+/.NET Core), older versions: var epoch = (DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalSeconds ![]()
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