Message 2 of 4. GabrielStJohn Community Champion. Hello, rafaelresende! Thank You! Message 3 of 4. Post Reply. Helpful resources. Launching new user group features Learn how to create your own user groups today! Learn More. View Now. View All. Top Solution Authors. Despite controversy, many countries have used it since then; details vary by location and change occasionally. Unix time or POSIX time , is a system for describing points in time: it is the number of seconds timestamp elapsed since midnight UTC of January 1, , not counting leap seconds.
It is widely used not only on Unix-like operating systems but in many other computing systems. It is neither a linear representation of time nor a true representation of UTC though it is frequently mistaken for both as the times it represents are UTC but it has no way of representing UTC leap seconds e. Unix timestamps are the number of seconds since midnight, January 1, GMT referred to as the Epoch. Modern Unix time and it's timestamp is based strictly on UTC.
UTC counts time using SI seconds, and breaks up the span of time into days. UTC days are mostly 86 s long, but are occasionally 86 s and could be 86 s long though the latter option has never been used as of December in order to keep the days synchronised with the rotation of the Earth or Universal Time. When a leap second occurs, so that the UTC day is not exactly 86 s long, a discontinuity occurs in the Unix time number.
The Unix time number - timestamp increases by exactly 86 each day, regardless of how long the day is. When a leap second is deleted which has never occurred as of , the Unix time number timestamp jumps up by 1 at the instant where the leap second was deleted from, which is the end of the day. When a leap second is inserted which has occurred on average once every year and a half , the Unix time number increases continuously during the leap second, during which time it is more than 86 s since the start of the current day , and then jumps down by 1 at the end of the leap second, which is the start of the next day.
Pages Home Preferences Toggle theme. Jump to top. GMT Local time. To display the epoch: Time. NET Framework 4. Unix More Go.
Command line: perl -e "print time" If Perl is installed on your system. To display add.
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