"Thu, 05 Mar 1970 12:02:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700305
Only TIME
12:02:37
General datetime
1970-03-05 12:02:37Z
For Database
1970-03-05 12:02:37
For HTTP1.1
Thu, 05 Mar 1970 12:02:37 GMT