You are viewing the version of this documentation from Perl blead.
This is the main development branch of Perl.
(git commit 4899d73825d84eab7b7aba2e5f73c22008590e67)
The time at which the program began running, in seconds since the epoch (beginning of 1970). The values returned by the -M, -A, and -C filetests are based on this value.