"Fri, 09 Jan 1970 07:42:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700109
Only TIME
07:42:50
General datetime
1970-01-09 07:42:50Z
For Database
1970-01-09 07:42:50
For HTTP1.1
Fri, 09 Jan 1970 07:42:50 GMT