"Sat, 03 Jan 1970 07:29:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700103
Only TIME
07:29:45
General datetime
1970-01-03 07:29:45Z
For Database
1970-01-03 07:29:45
For HTTP1.1
Sat, 03 Jan 1970 07:29:45 GMT