"Sun, 12 May 2024 14:37:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
14:37:42
General datetime
2024-05-12 14:37:42Z
For Database
2024-05-12 14:37:42
For HTTP1.1
Sun, 12 May 2024 14:37:42 GMT