"Mon, 09 Dec 2024 15:18:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
15:18:23
General datetime
2024-12-09 15:18:23Z
For Database
2024-12-09 15:18:23
For HTTP1.1
Mon, 09 Dec 2024 15:18:23 GMT