"Sun, 25 Jan 1970 07:25:29"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700125
Only TIME
07:25:29
General datetime
1970-01-25 07:25:29Z
For Database
1970-01-25 07:25:29
For HTTP1.1
Sun, 25 Jan 1970 07:25:29 GMT