"Tue, 26 May 1970 07:11:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700526
Only TIME
07:11:46
General datetime
1970-05-26 07:11:46Z
For Database
1970-05-26 07:11:46
For HTTP1.1
Tue, 26 May 1970 07:11:46 GMT