"Sun, 12 May 2024 12:35:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
12:35:16
General datetime
2024-05-12 12:35:16Z
For Database
2024-05-12 12:35:16
For HTTP1.1
Sun, 12 May 2024 12:35:16 GMT