"Tue, 27 Jan 1970 12:53:43"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700127
Only TIME
12:53:43
General datetime
1970-01-27 12:53:43Z
For Database
1970-01-27 12:53:43
For HTTP1.1
Tue, 27 Jan 1970 12:53:43 GMT