"Wed, 15 May 2024 20:00:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
20:00:03
General datetime
2024-05-15 20:00:03Z
For Database
2024-05-15 20:00:03
For HTTP1.1
Wed, 15 May 2024 20:00:03 GMT