Umm - since we’ve been told that no man can know the time - we must also realize that we are warned against false “prophets” claiming to have such information.
I’ve heard it said that no one knows when that:
1. Day
or
2.Hour may come.
Matthew 24:36
So if the rapture is predicted to happen sometime during a 2 day feast, then if it doesn’t happen on the first day of the two day feast, then still, the hour that it would happen would still be unknown for the 2nd day of the feast.
I would say, regardless of what side of the rapture/second coming tribulation debate you fall on, from one day, to the next..... To be wise, and keep your “jars of oil” filled, and your wicks trimmed. Matthew 25: 1-13