"Tue, 27 Jan 1970 07:24:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700127
Only TIME
07:24:53
General datetime
1970-01-27 07:24:53Z
For Database
1970-01-27 07:24:53
For HTTP1.1
Tue, 27 Jan 1970 07:24:53 GMT