"Thu, 05 Feb 1970 04:34:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700205
Only TIME
04:34:04
General datetime
1970-02-05 04:34:04Z
For Database
1970-02-05 04:34:04
For HTTP1.1
Thu, 05 Feb 1970 04:34:04 GMT