"Wed, 18 Dec 2024 14:18:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
14:18:19
General datetime
2024-12-18 14:18:19Z
For Database
2024-12-18 14:18:19
For HTTP1.1
Wed, 18 Dec 2024 14:18:19 GMT