"Fri, 30 Jan 1970 07:54:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700130
Only TIME
07:54:20
General datetime
1970-01-30 07:54:20Z
For Database
1970-01-30 07:54:20
For HTTP1.1
Fri, 30 Jan 1970 07:54:20 GMT