"Wed, 15 May 2024 16:08:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
16:08:20
General datetime
2024-05-15 16:08:20Z
For Database
2024-05-15 16:08:20
For HTTP1.1
Wed, 15 May 2024 16:08:20 GMT