"Sun, 22 Dec 2024 08:48:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241222
Only TIME
08:48:56
General datetime
2024-12-22 08:48:56Z
For Database
2024-12-22 08:48:56
For HTTP1.1
Sun, 22 Dec 2024 08:48:56 GMT