"Mon, 09 Dec 2024 18:18:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
18:18:45
General datetime
2024-12-09 18:18:45Z
For Database
2024-12-09 18:18:45
For HTTP1.1
Mon, 09 Dec 2024 18:18:45 GMT