"Fri, 09 Jan 1970 12:32:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700109
Only TIME
12:32:18
General datetime
1970-01-09 12:32:18Z
For Database
1970-01-09 12:32:18
For HTTP1.1
Fri, 09 Jan 1970 12:32:18 GMT