"Sat, 21 Dec 2024 18:01:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
18:01:00
General datetime
2024-12-21 18:01:00Z
For Database
2024-12-21 18:01:00
For HTTP1.1
Sat, 21 Dec 2024 18:01:00 GMT