"Wed, 11 Feb 1970 14:46:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700211
Only TIME
14:46:09
General datetime
1970-02-11 14:46:09Z
For Database
1970-02-11 14:46:09
For HTTP1.1
Wed, 11 Feb 1970 14:46:09 GMT