"Mon, 16 Dec 2024 21:34:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
21:34:12
General datetime
2024-12-16 21:34:12Z
For Database
2024-12-16 21:34:12
For HTTP1.1
Mon, 16 Dec 2024 21:34:12 GMT