"Wed, 04 Feb 1970 11:25:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700204
Only TIME
11:25:37
General datetime
1970-02-04 11:25:37Z
For Database
1970-02-04 11:25:37
For HTTP1.1
Wed, 04 Feb 1970 11:25:37 GMT