"Fri, 02 Jan 1970 03:40:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
03:40:53
General datetime
1970-01-02 03:40:53Z
For Database
1970-01-02 03:40:53
For HTTP1.1
Fri, 02 Jan 1970 03:40:53 GMT