"Mon, 26 Jan 1970 20:37:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700126
Only TIME
20:37:58
General datetime
1970-01-26 20:37:58Z
For Database
1970-01-26 20:37:58
For HTTP1.1
Mon, 26 Jan 1970 20:37:58 GMT