"Mon, 16 Dec 2024 18:47:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
18:47:18
General datetime
2024-12-16 18:47:18Z
For Database
2024-12-16 18:47:18
For HTTP1.1
Mon, 16 Dec 2024 18:47:18 GMT