"Mon, 16 Dec 2024 21:47:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
21:47:23
General datetime
2024-12-16 21:47:23Z
For Database
2024-12-16 21:47:23
For HTTP1.1
Mon, 16 Dec 2024 21:47:23 GMT