"Sun, 01 Dec 2024 09:18:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241201
Only TIME
09:18:20
General datetime
2024-12-01 09:18:20Z
For Database
2024-12-01 09:18:20
For HTTP1.1
Sun, 01 Dec 2024 09:18:20 GMT