"Mon, 23 Feb 1970 23:32:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700223
Only TIME
23:32:10
General datetime
1970-02-23 23:32:10Z
For Database
1970-02-23 23:32:10
For HTTP1.1
Mon, 23 Feb 1970 23:32:10 GMT