"Mon, 16 Dec 2024 14:18:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
14:18:15
General datetime
2024-12-16 14:18:15Z
For Database
2024-12-16 14:18:15
For HTTP1.1
Mon, 16 Dec 2024 14:18:15 GMT