"Sun, 15 Dec 2024 03:52:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241215
Only TIME
03:52:42
General datetime
2024-12-15 03:52:42Z
For Database
2024-12-15 03:52:42
For HTTP1.1
Sun, 15 Dec 2024 03:52:42 GMT