"Mon, 19 Jan 1970 05:54:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700119
Only TIME
05:54:25
General datetime
1970-01-19 05:54:25Z
For Database
1970-01-19 05:54:25
For HTTP1.1
Mon, 19 Jan 1970 05:54:25 GMT