"Fri, 02 Jan 1970 00:55:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
00:55:25
General datetime
1970-01-02 00:55:25Z
For Database
1970-01-02 00:55:25
For HTTP1.1
Fri, 02 Jan 1970 00:55:25 GMT