"Fri, 27 Dec 2024 21:18:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241227
Only TIME
21:18:20
General datetime
2024-12-27 21:18:20Z
For Database
2024-12-27 21:18:20
For HTTP1.1
Fri, 27 Dec 2024 21:18:20 GMT