"Fri, 30 Jan 1970 22:40:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700130
Only TIME
22:40:57
General datetime
1970-01-30 22:40:57Z
For Database
1970-01-30 22:40:57
For HTTP1.1
Fri, 30 Jan 1970 22:40:57 GMT