"Sun, 15 Sep 2024 23:59:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
23:59:37
General datetime
2024-09-15 23:59:37Z
For Database
2024-09-15 23:59:37
For HTTP1.1
Sun, 15 Sep 2024 23:59:37 GMT