time

Returns the number of seconds since the unix epoch. Note that time() works from the server's clock, so it is synchronized among all clients. This is exactly like the C time(0) function. Very useful for seeding random numbers if you don't need millisecond precision, etc.

DEFAULT_CHAT_FRAME:AddMessage("Current Time: "..time())

Might produce:

Current Time: 1118722038

--Drena