"Fri, 02 Jan 1970 03:44:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700102
Only TIME
03:44:09
General datetime
1970-01-02 03:44:09Z
For Database
1970-01-02 03:44:09
For HTTP1.1
Fri, 02 Jan 1970 03:44:09 GMT