[Zope] converting unix time -> normal time

[BZ]

I have a bunch of IDs that were created using unix time.. ie: "958560950"
and would like to convert them back to normal (readable) time so I can
figure out when they were published.

Found a good JavaScript version, but cannot find anyway to do it in
Zope/Python.

http://dan.drydog.com/unixdatetime.html

BZ