## Current system date
$ date
Tue Jun 2 08:07:57 UTC 2015
$ date +"%s"
1433232485
$ date +"%s%3N"
1433232489392
$ date -d @"1433232489.392"
Tue Jun 2 08:08:09 UTC 2015
$ date -d @"1433232489"
Tue Jun 2 08:08:09 UTC 2015