"Sun, 12 May 2024 16:23:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
16:23:17
General datetime
2024-05-12 16:23:17Z
For Database
2024-05-12 16:23:17
For HTTP1.1
Sun, 12 May 2024 16:23:17 GMT