"Sun, 15 Sep 2024 03:09:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
03:09:19
General datetime
2024-09-15 03:09:19Z
For Database
2024-09-15 03:09:19
For HTTP1.1
Sun, 15 Sep 2024 03:09:19 GMT