Right before the LAST TRUMPET

But in the days of the voice of the seventh angel, when he shall begin to sound,

the mystery of God should be finished, as he hath declared to his servants the prophets.

And the voice which I heard from heaven spake unto me again, and said,

Go and take the little book which is open in the hand of the angel

which standeth upon the sea and upon the earth.

And I went unto the angel, and said unto him, Give me the little book.

And he said unto me, Take it, and eat it up; and it shall make thy belly bitter,

but it shall be in thy mouth sweet as honey.

And I took the little book out of the angel's hand, and ate it up;

and it was in my mouth sweet as honey:

and as soon as I had eaten it, my belly was bitter.

And he said unto me,

Thou must prophesy again before many peoples, and nations, and tongues, and kings.

REV 10:7-11

Many Bible students are coming to believe that the Feast of Trumpets will herald the seven year peace covenant of Daniel 9:27. This awesome future event fits the spirit, nature, and character of the Feast of Trumpets very well. Evangelicals have also noticed that the timespan encompassing the Feast of Trumpets and the Day of Atonement (Christian holiday) when they are seven years apart and when they comprise 86 moons on the metatonic cycle, (and not 87 moons), is 2550 days.

86 moons = 86 x 29.530589 days + 10 days = 2550 days (inclusive). This is the timespan that begins on Tishrei 1 in year X and extends out seven years to Tishrei 10 on year X + 7.

2550 days is a very special number of days. It happens to very precisely encompass the timespan of the 70th week of Daniel with the 30 day extension of the second half of the 70th Week going beyond the 1260 days to the 1290 days. This period of 1290 days was prophesied by Daniel in Dan.12:11. The number of days for the final seven years of this age then becomes, - 1260 days + 1290 days = 2550 days.

There is a perfect agreement of the two timespans. And the nature of the Feast of Trumpets and the Day of Atonement fits the Dan.9:27 seven year covenant and the last day, the Day of Reckoning respectively. This indicates that the final seven years of this age will begin on a Jewish new year somewhere in the September-October time of the year.

The calculations of these Feast of Trumpets to Day of Atonement timespans across 86 moons or across seven years are simple and easily verifiable. They can be confirmed quite readily using lunar data from the United States Naval Observatory or by using the Hebrew Calendar Convertor available online at Hebcal.com

Blow the trumpet in Zion, sanctify a fast, call a solemn assembly:

Gather the people, sanctify the congregation, assemble the elders, 

gather the children, and those that suck the breasts:

let the bridegroom go forth of his chamber,

and the bride out of her closet.

JOEL 2:15-16