"Sun, 24 Mar 2024 22:20:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240324
Only TIME
22:20:20
General datetime
2024-03-24 22:20:20Z
For Database
2024-03-24 22:20:20
For HTTP1.1
Sun, 24 Mar 2024 22:20:20 GMT