"Mon, 16 Dec 2024 21:47:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
21:47:03
General datetime
2024-12-16 21:47:03Z
For Database
2024-12-16 21:47:03
For HTTP1.1
Mon, 16 Dec 2024 21:47:03 GMT