"Sun, 15 Sep 2024 21:35:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
21:35:25
General datetime
2024-09-15 21:35:25Z
For Database
2024-09-15 21:35:25
For HTTP1.1
Sun, 15 Sep 2024 21:35:25 GMT