"Mon, 16 Dec 2024 21:54:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
21:54:36
General datetime
2024-12-16 21:54:36Z
For Database
2024-12-16 21:54:36
For HTTP1.1
Mon, 16 Dec 2024 21:54:36 GMT