"Thu, 19 Dec 2024 20:18:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241219
Only TIME
20:18:18
General datetime
2024-12-19 20:18:18Z
For Database
2024-12-19 20:18:18
For HTTP1.1
Thu, 19 Dec 2024 20:18:18 GMT