"Fri, 01 May 1970 07:12:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700501
Only TIME
07:12:33
General datetime
1970-05-01 07:12:33Z
For Database
1970-05-01 07:12:33
For HTTP1.1
Fri, 01 May 1970 07:12:33 GMT