"Sat, 07 Dec 2024 08:21:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241207
Only TIME
08:21:18
General datetime
2024-12-07 08:21:18Z
For Database
2024-12-07 08:21:18
For HTTP1.1
Sat, 07 Dec 2024 08:21:18 GMT