"Mon, 09 Dec 2024 14:54:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
14:54:45
General datetime
2024-12-09 14:54:45Z
For Database
2024-12-09 14:54:45
For HTTP1.1
Mon, 09 Dec 2024 14:54:45 GMT