You are viewing the version of this documentation from Perl blead.
This is the main development branch of Perl.
(git commit 8e50dbf32b80ca84a9d4d8c9d63010c54aa73018)
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.