"Sun, 12 May 2024 12:52:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
12:52:56
General datetime
2024-05-12 12:52:56Z
For Database
2024-05-12 12:52:56
For HTTP1.1
Sun, 12 May 2024 12:52:56 GMT