"Fri, 09 Jan 1970 07:42:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700109
Only TIME
07:42:37
General datetime
1970-01-09 07:42:37Z
For Database
1970-01-09 07:42:37
For HTTP1.1
Fri, 09 Jan 1970 07:42:37 GMT