"Fri, 09 Jan 1970 02:28:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700109
Only TIME
02:28:49
General datetime
1970-01-09 02:28:49Z
For Database
1970-01-09 02:28:49
For HTTP1.1
Fri, 09 Jan 1970 02:28:49 GMT