"Tue, 10 Feb 1970 01:28:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700210
Only TIME
01:28:18
General datetime
1970-02-10 01:28:18Z
For Database
1970-02-10 01:28:18
For HTTP1.1
Tue, 10 Feb 1970 01:28:18 GMT