"Wed, 18 Dec 2024 18:44:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241218
Only TIME
18:44:51
General datetime
2024-12-18 18:44:51Z
For Database
2024-12-18 18:44:51
For HTTP1.1
Wed, 18 Dec 2024 18:44:51 GMT