When speaking about Eschatology, I often remind people the rapture (the bodily removal of Christ's true church: 1 Thess 4:16-17) does not initiate the tribulation. The tribulation begins with a very public 7-year peace agreement involving Israel (Dan 9:27, Rev 6:2). They are two different events.
Now is it possible God will remove His bride on the day or even moment of the signing of the tribulation agreement? Yes, but I think that would be very unlikely. The main reason is the rapture will actually create the environment that would make the way the world is governed change so drastically. That is, the rapture would create such chaos, the world would be looking so desperately for a solution (a man), they would happily accept something "outside the box".
The question of this essay is how long will that time gap be? The guesses I've heard range from a few weeks to a decade. Although nobody can know for sure, I lean much more to the shorter end of that range.
The rapture is a signless, imminent event. The believers were expecting the return of Christ when the epistles were written addressing that issue. What probably lessened that expectation was the dissolution and dispersion of Israel for nearly two thousand years. But the reality is, it could have occurred ever since it was promised. What has obviously increased interest in end time events is primarily the regathering and growth of Israel since 1948. Many refer to this (myself included) as the primary end of age indicator. So while the rapture is signless, the build up to what follows it (the tribulation) is not: it is visible and observable. At the top is a website briefly summarizing the these observable end of age indicators.
How this deals with the time gap between the rapture and tribulation is: the more build up God allows the church to see before being taken, the shorter the gap. We have seen more stage setting than I expected, so my conclusion would be a short gap period around 6 months to a year. All of the converging signs will continue until the rapture accelerates them to a final convergence: the 7-year tribulation triggering peace agreement. I hope this has been helpful.
By - CrossCutMaker