"Sat, 24 Jan 1970 09:22:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700124
Only TIME
09:22:04
General datetime
1970-01-24 09:22:04Z
For Database
1970-01-24 09:22:04
For HTTP1.1
Sat, 24 Jan 1970 09:22:04 GMT