"Sun, 15 Dec 2024 08:33:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241215
Only TIME
08:33:30
General datetime
2024-12-15 08:33:30Z
For Database
2024-12-15 08:33:30
For HTTP1.1
Sun, 15 Dec 2024 08:33:30 GMT