"Sat, 24 Jan 1970 07:55:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700124
Only TIME
07:55:02
General datetime
1970-01-24 07:55:02Z
For Database
1970-01-24 07:55:02
For HTTP1.1
Sat, 24 Jan 1970 07:55:02 GMT