Aug 27, 2014 · Interestingly, the description of find does not further specify 'initialization time'. It is probably, though, the time when find is initialized (run). In the descriptions, wherever n is used as a primary argument, it shall be interpreted as a decimal integer optionally preceded by a plus ( '+' ) or minus-sign ( '-' ) sign, as follows:

Use the built-in time keyword: $ help time time: time [-p] PIPELINE Execute PIPELINE and print a summary of the real time, user CPU time, and system CPU time spent executing PIPELINE when it terminates. The return status is the return status of PIPELINE. The `-p' option prints the timing summary in a slightly different format.

Unix Epoch Time. This is the format you should get timestamps in for saving in databases. It is a simple ...

Jan 26, 2017 · Just use time [any command]. Ex: time sleep 1 will sleep for a real time (ie: as timed by a stop watch) of ~1.000 to ~1.020 sec, as shown here: $ time sleep 1 real 0m1.011s user 0m0.004s sys 0m0.000s What a beautiful thing. You can put any command after it, and it outputs the result in a nice, human-readable form.

Aug 29, 2014 · Real is wall clock time - time from start to finish of the call. This is all elapsed time including time slices used by other processes and time the process spends blocked (for example if it is waiting for I/O to complete). User is the amount of CPU time spent in user-mode code (outside the kernel) within the process. This is only actual CPU ...

Jun 12, 2014 · However, to get a Unix date, this needs to be a full date. You can't convert 3:00PM to Unix time since Unix time refers to an entire date (year,month,day,time). So, for example, to get the Unix date for the 12th of September 1987, you would do: $ date -d "3 PM 12 September 1987" +%s 558450000 And to convert that back to a "normal" date:

Feb 26, 2021 · The specific date of the epoch and the handling of leap seconds is platform dependent. On Windows and most Unix systems, the epoch is January 1, 1970, 00:00:00 (UTC) and leap seconds are not counted towards the time in seconds since the epoch. This is commonly referred to as Unix time.

The Unix epoch is the number of seconds that have elapsed since January 1, 1970 at midnight UTC time minus the leap seconds. This means that at midnight of January 1, 1970, Unix time was 0. The Unix epoch is also called Unix time, POSIX time, or Unix timestamp.

Oct 14, 2019 · Unix time corresponds to UTC time (if we ignore the time around leap seconds). Think about it: the timestamp is the number of seconds elapsed since the epoch (a fixed moment in time): why would it depend on what timezone machine's local clock uses? At any given moment in time the Unix time is the same around the world.

May 5, 2018 · Sorry to necrobump this, but technically all of these answers are incorrect since time is not guaranteed to be since the Unix epoch; according to Wikipedia it can be any epoch that the vendor chooses. It also says 1900 is sometimes used. However, i would assume that it is since the Unix epoch on all even remotely sane systems. –