"Sun, 22 Dec 2024 08:15:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241222
Only TIME
08:15:11
General datetime
2024-12-22 08:15:11Z
For Database
2024-12-22 08:15:11
For HTTP1.1
Sun, 22 Dec 2024 08:15:11 GMT