The imminent represents a timing but not a specific one it has to do with how the bridegroom a bridegroom in jewish weddings comes when the father allows it until then the bridegroom and the bride knowing that the time is imminent have no clue when the father will say go and collect your bride they wait with watchfulness until then
This verse here says it is imminent
1 Thessalonians 5:2–3 (ESV)
“For you yourselves are fully aware that the day of the Lord will come like a thief in the night. While people are saying, ‘There is peace and security,’ then sudden destruction will come upon them
now we could say this is the terrible day of the Lord where he comes in the clouds to judge the earth but some believe it represents the rapture
The feast of trumpets has been on my mind lately because it is either on the 23 or the 24th of september because no one actually knows the day and hour it begins
It depends on the moon cycle and Jesus referenced that no one will know the day or hour of his coming and he spoke this in the parable of the theif in the night as well
The coming like a thief in the night is spoken of twice in scripture first by Jesus then in the epistles so it clearly has importance of some kind and Jesus fulfilled the first three feast days in his first coming he has yet to fulfill four more and the feast of trumpets is one of them.
personally I believe the tribulation has to beegin before he comes for his bride