"Mon, 12 Jan 1970 23:32:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700112
Only TIME
23:32:58
General datetime
1970-01-12 23:32:58Z
For Database
1970-01-12 23:32:58
For HTTP1.1
Mon, 12 Jan 1970 23:32:58 GMT