"Sun, 12 May 2024 20:14:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
20:14:33
General datetime
2024-05-12 20:14:33Z
For Database
2024-05-12 20:14:33
For HTTP1.1
Sun, 12 May 2024 20:14:33 GMT