"Wed, 15 May 2024 19:57:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
19:57:14
General datetime
2024-05-15 19:57:14Z
For Database
2024-05-15 19:57:14
For HTTP1.1
Wed, 15 May 2024 19:57:14 GMT