"Thu, 05 Feb 1970 23:30:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700205
Only TIME
23:30:50
General datetime
1970-02-05 23:30:50Z
For Database
1970-02-05 23:30:50
For HTTP1.1
Thu, 05 Feb 1970 23:30:50 GMT