"Wed, 15 May 2024 20:19:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
20:19:40
General datetime
2024-05-15 20:19:40Z
For Database
2024-05-15 20:19:40
For HTTP1.1
Wed, 15 May 2024 20:19:40 GMT