"Wed, 15 May 2024 18:23:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
18:23:48
General datetime
2024-05-15 18:23:48Z
For Database
2024-05-15 18:23:48
For HTTP1.1
Wed, 15 May 2024 18:23:48 GMT