"Thu, 23 May 2024 20:15:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240523
Only TIME
20:15:03
General datetime
2024-05-23 20:15:03Z
For Database
2024-05-23 20:15:03
For HTTP1.1
Thu, 23 May 2024 20:15:03 GMT