"Sun, 01 Dec 2024 21:18:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241201
Only TIME
21:18:09
General datetime
2024-12-01 21:18:09Z
For Database
2024-12-01 21:18:09
For HTTP1.1
Sun, 01 Dec 2024 21:18:09 GMT