The printt command takes one or more numerical expressions and interprets each one as the number of seconds since the Epoch (00:00:00 UTC 1 Jan 1970; see ctime(3) for more information).
For example:
printt_command
: printt [ expression ,... ]
(idb) printt 0
(UTC) Thu Jan 1 00:00:00 1970
(idb) printt 978325200
(UTC) Mon Jan 1 05:00:00 2001