"Tue, 10 Feb 1970 19:46:08"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700210
Only TIME
19:46:08
General datetime
1970-02-10 19:46:08Z
For Database
1970-02-10 19:46:08
For HTTP1.1
Tue, 10 Feb 1970 19:46:08 GMT