"Wed, 18 Dec 2024 17:15:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
17:15:14
General datetime
2024-12-18 17:15:14Z
For Database
2024-12-18 17:15:14
For HTTP1.1
Wed, 18 Dec 2024 17:15:14 GMT