"Wed, 18 Dec 2024 13:15:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
13:15:18
General datetime
2024-12-18 13:15:18Z
For Database
2024-12-18 13:15:18
For HTTP1.1
Wed, 18 Dec 2024 13:15:18 GMT