The tribulation starts when the abomination of desolation is erected in the holy place of the new temple that will be built in Jerusalem.
15 “Therefore when you see the ‘abomination of desolation,’ spoken of by Daniel the prophet, standing in the holy place” (whoever reads, let him understand),... For then there will be great tribulation, such as has not been since the beginning of the world until this time, no, nor ever shall be. Matthew 24:15,21
This will take place in the “middle of the last 7 year period known as Daniels 70 weeks.
27 Then he shall confirm a covenant with many for one week;
But in the middle of the week
He shall bring an end to sacrifice and offering.
And on the wing of abominations shall be one who makes desolate,
Even until the consummation, which is determined,
Is poured out on the desolate.”
Daniel 9:27
- But in the middle of the week he shall bring an end to sacrifice and offering.And on the wing of abominations shall be one who makes desolate,
JLB