B. Summary: The Tribulation Will Be Cut Short by 4 Months and 20 Days.

B. Summary: The Tribulation Will Be Cut Short by 4 Months and 20 Days.
1. The Tribulation will be cut short by 4 months, and 20 days. In Daniel 12:11, we have 3 years, 7 months. In Daniel 8:14, we have 3 years, 2 months, 10 days. Since both are in reference to the last 3 1/2 years of the Tribulation Period, we can see a difference of 4 months, 20 days; thus, illuminating Matthew 24:21-22.
“For then shall be (the) great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be. (Matthew 24:21)
And except those days should be shortened, there should no flesh be saved: but for the elect’s sake (i.e., the saved of Israel) these days shall be shortened.” (Matthew 24:22).
2. Comparing Daniel 12:11 with Daniel 12:12, we have the difference of 45 days or a month and a half. The reason we divided this into 30 days and 15 days is because of the three feast days; which, prophetically, have not yet been fulfilled; whereas the first four have. These seven feasts as recorded in Leviticus 23 and etc., are types of future fulfillments.
a. “The Feast of Passover” (Exodus 12) is fulfilled in Christ’s Crucifixion. 1 Corinthians 5:7 states,
“For even Christ our passover is sanctified for us.
b. “The Feast of Unleavened Bread,” fulfilled in Christ’s sinless life and enjoins the Christian to lead a clean life as stated in 1 Corinthians 5:7 a,
“Purge out therefore the old leaven that ye may be a new lump…”
Even Judas said in Matthew 27:4,
“ I have sinned in that I have betrayed innocent blood.”
c. “The Feast of First Fruits” is fulfilled by Christ’s Resurrection as stated in 1 Corinthians 15:20; 1 Corinthians 15:23. 
“But now is Christ risen from the dead, and become the first fruits of them that slept.”
d. “The Feast of Pentecost,” fulfilled fifty days after Christ’s Resurrection by the giving of the Holy Spirit. “Pentecost” means Fifty, as the Holy Spirit came exactly as promised—fifty days after His Resurrection. (Acts 1:3-4),
This, therefore, leaves the last three feasts of “Trumpets,” “Atonement,” and “Tabernacles” to be fulfilled in type, as shown on our diagram. These three feasts cover a period of 15 days.
e. "The Feast of Trumpets,” beginning the 1st Day of the 7th Month (Leviticus 23:23-25);
f. “The Feast of Atonement,” beginning the 10th Day of the 7th Month (Leviticus 23:27); and the...
g. “Feast of Tabernacles,” beginning on the 15th Day of the 7th Month, making a total of 15 days. The Feast of Tabernacles will continue on, once a year, into and throughout the Millennium (Zechariah 14:16-19).
The remaining 30 days will be occupied with the Old Testament Saints receiving their resurrected bodies; Christ chaining Satan for a 1,000 years; Christ victorious in the Armageddon battle; and Christ judging the Nations in preparation for His Kingdom Reign.

15. Diagram: The Shortening of the Days of The Tribulation Period.