"Wed, 15 May 2024 18:05:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
18:05:14
General datetime
2024-05-15 18:05:14Z
For Database
2024-05-15 18:05:14
For HTTP1.1
Wed, 15 May 2024 18:05:14 GMT