"Fri, 30 Jan 1970 21:42:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700130
Only TIME
21:42:11
General datetime
1970-01-30 21:42:11Z
For Database
1970-01-30 21:42:11
For HTTP1.1
Fri, 30 Jan 1970 21:42:11 GMT