"Sun, 15 Sep 2024 13:16:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
13:16:17
General datetime
2024-09-15 13:16:17Z
For Database
2024-09-15 13:16:17
For HTTP1.1
Sun, 15 Sep 2024 13:16:17 GMT