"Wed, 15 May 2024 18:35:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
18:35:33
General datetime
2024-05-15 18:35:33Z
For Database
2024-05-15 18:35:33
For HTTP1.1
Wed, 15 May 2024 18:35:33 GMT