The HOUR of temptation is not 60 minutes nor a time period so much as it is an EXPERIENCE.
Rev_3:10 Because thou hast kept the word of my patience, I also will keep thee from the hour of temptation, which shall come upon all the world, to try them that dwell upon the earth.
You cannot escape the TIME PERIOD this is referring to. The only way to escape the time period is the time-travel from before the start of the period to after it is over, and not miss a beat, as though that time period never occurred. If people are in heaven during this time period, they have not escaped the TIME PERIOD. They exist and are conscious when that time period occurs on earth.
Jesus prayed to be saved "FROM THIS HOUR".
John 12:27 KJV Now is my soul troubled; and what shall I say? Father,
save me from this hour: but for this cause came I unto this hour.
What did he mean? A time period? Time-travel me past this time period so I do not even have the consciousness that it occurred, because I was not present when that time lapsed? Of course not!
He meant to be spared the EXPERIENCE of suffering.
That is what Revelation is talking about. Being SPARED THE EXPERIENCE, not being absent for a time period.
That was a then-cultural way of speaking of a bad experience one wanted to avoid, not a time period to be avoided. And this is one example of how 21st century people, living 2000 years after these things were written, and half a world away, do not understand manners of speech used then, and translate them into 21st century uses of those same words.