You want to convert a date, a time, or both with distinct values for day, month, year, etc. to Epoch seconds.
timegm functions in the standard Time::Local
module, depending on whether the date and time is in the current time
zone or in UTC.
use Time::Local; $TIME = timelocal($sec, $min, $hours, $mday, $mon, $year); $TIME = timegm($sec, $min, $hours, $mday, $mon, $year);
The built-in function
localtime converts an Epoch
seconds value to distinct DMYHMS values; the
timelocal subroutine from the standard Time::Local
module converts distinct DMYHMS values to an Epoch seconds value.
Here’s an example that shows how to find Epoch seconds for a
time in the current day. It gets the day, month, and year values from
# $hours, $minutes, and $seconds represent a time today, # in the current time zone use Time::Local; $time = timelocal($seconds, $minutes, $hours, (localtime)[3,4,5]);
If you’re passing month and year values to
timelocal, it expects values with the same range
as those which
localtime returns. Namely, months
start at 0, and years have 1900 subtracted from them.
timelocal function assumes the
DMYHMS values represent a time in the current
time zone. Time::Local also exports a
timegm subroutine that assumes the DMYHMS values represent a time in the GMT time zone. Unfortunately, there is no convenient way to convert from a time zone other than the current local time zone or GMT. The best ...