"Sun, 15 Dec 2024 08:49:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241215
Only TIME
08:49:32
General datetime
2024-12-15 08:49:32Z
For Database
2024-12-15 08:49:32
For HTTP1.1
Sun, 15 Dec 2024 08:49:32 GMT