"Fri, 09 Jan 1970 22:05:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700109
Only TIME
22:05:48
General datetime
1970-01-09 22:05:48Z
For Database
1970-01-09 22:05:48
For HTTP1.1
Fri, 09 Jan 1970 22:05:48 GMT