Some command line tools for quick time lookups. Most useful is probably when, which converts UTC
to date, automatically figuring out the likely unit of the UTC (msec, sec, or hour).
e.g.
kevin@ubuntu:~> when 1384871912325
(msec) Tue Nov 19 09:38:32 2013
kevin@ubuntu:~> when 384642
( hr) Sun Nov 17 13:00:00 2013
kevin@ubuntu:~> when 1000000000
(msec) Mon Jan 12 08:46:40 1970
( sec) Sat Sep 8 21:46:40 2001
( hr) Wed Jun 16 12:00:00 116049
Also:
kevin@ubuntu:~> now
1384872087335
kevin@ubuntu:~> daysago 1
1384785690633
kevin@ubuntu:~> hoursago 24
1384785692434