"Wed, 25 Feb 1970 07:13:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700225
Only TIME
07:13:12
General datetime
1970-02-25 07:13:12Z
For Database
1970-02-25 07:13:12
For HTTP1.1
Wed, 25 Feb 1970 07:13:12 GMT