"Sun, 12 May 2024 18:03:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
18:03:50
General datetime
2024-05-12 18:03:50Z
For Database
2024-05-12 18:03:50
For HTTP1.1
Sun, 12 May 2024 18:03:50 GMT