"Wed, 18 Dec 2024 19:40:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
19:40:13
General datetime
2024-12-18 19:40:13Z
For Database
2024-12-18 19:40:13
For HTTP1.1
Wed, 18 Dec 2024 19:40:13 GMT