"Sat, 31 Jan 1970 12:53:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700131
Only TIME
12:53:58
General datetime
1970-01-31 12:53:58Z
For Database
1970-01-31 12:53:58
For HTTP1.1
Sat, 31 Jan 1970 12:53:58 GMT