"Sat, 14 Dec 2024 18:00:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241214
Only TIME
18:00:03
General datetime
2024-12-14 18:00:03Z
For Database
2024-12-14 18:00:03
For HTTP1.1
Sat, 14 Dec 2024 18:00:03 GMT