"Fri, 02 Jan 1970 09:17:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
09:17:57
General datetime
1970-01-02 09:17:57Z
For Database
1970-01-02 09:17:57
For HTTP1.1
Fri, 02 Jan 1970 09:17:57 GMT