"Fri, 09 Jan 1970 09:20:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700109
Only TIME
09:20:06
General datetime
1970-01-09 09:20:06Z
For Database
1970-01-09 09:20:06
For HTTP1.1
Fri, 09 Jan 1970 09:20:06 GMT