"Sun, 22 Dec 2024 14:18:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241222
Only TIME
14:18:16
General datetime
2024-12-22 14:18:16Z
For Database
2024-12-22 14:18:16
For HTTP1.1
Sun, 22 Dec 2024 14:18:16 GMT