"Sun, 22 Sep 2024 21:42:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240922
Only TIME
21:42:21
General datetime
2024-09-22 21:42:21Z
For Database
2024-09-22 21:42:21
For HTTP1.1
Sun, 22 Sep 2024 21:42:21 GMT