"Sun, 15 Sep 2024 15:54:43"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
15:54:43
General datetime
2024-09-15 15:54:43Z
For Database
2024-09-15 15:54:43
For HTTP1.1
Sun, 15 Sep 2024 15:54:43 GMT