"Sun, 17 Mar 2024 11:20:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240317
Only TIME
11:20:20
General datetime
2024-03-17 11:20:20Z
For Database
2024-03-17 11:20:20
For HTTP1.1
Sun, 17 Mar 2024 11:20:20 GMT