"Thu, 22 Jan 1970 07:51:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700122
Only TIME
07:51:19
General datetime
1970-01-22 07:51:19Z
For Database
1970-01-22 07:51:19
For HTTP1.1
Thu, 22 Jan 1970 07:51:19 GMT