Revelation Chapter 12 is often called the most important chapter in the Bible. I totally agree with that statement. Chapters 11 and 12 are the only two places in the entire Bible where the number 1260 can be found. Unfortunately many people believe this number is the same number of days associated with the 42 months mentioned in chapter 11 or with a time, times, and half a time mentioned in verse fourteen. These people believe this lie because they think God uses a thirty day monthly calendar based on a 360 day year, a lie from the pit of hell. In chapter 11 the number is associated with the length of the ministry of the two end-time witnesses. The two witnesses prophesy for 1,260 days clothed in sackcloth. At the end of their ministry the beast that ascends from the bottomless pit will make war against them and overcome and kill them. These two witnesses have been alive for over two thousand years and they were actual eye-witnesses to the ministry of the Lord Jesus, the very reason they are called the two witnesses. I see their ministry begin possibly in 2023. If their ministry begins in the autumn of 2023, late Monday eve Elul 27 then it will end exactly 1260 days later on Monday/Tuesday eve Adar 16/17. This is one month shy of the Nisan 16/17 day fulfilled by Jesus. The reason being the unique nature of the Elijah calendar allows for the 1260 day ministry of the Lord to be fullfilled only between years 3-7 of the nineteen year cycle. Nevertheless these two men will have fulfilled their assigned 1260 day ministry. Then they will be refused burial for 3.5 days. On Adar 21 they will hear a great voice from heaven saying, come up hither, and they will ascended unto heaven in a cloud and their enemies will behold them.
In Revelation chapter 12 the woman clothed with the sun with the moon under her feet bore a male child who was to rule all nations with a rod of iron. This is undoubtedly a reference to the Lord and Messiah Jesus Christ. One important reason to understand the significance of the 1260 days is simply because this was the exact length of Jesus ministry from the day of His baptism in the Jordan River(when He was caught up to the throne of God, Revelation 12:5) until the day of His resurrection on Nisan 16 (Feast of First-fruits) in 31 AD. If this was the exact length of the Lord's ministry then we should be able to plug this value into a correctly interpolated Hebrew calendar simulating the arrival of Messiah as expressed in Daniel's 70-weeks prophecy. Unfortunately there are no known ancient Hebrew calendars available from that exact period. However we do live in the information age and to build a Hebrew calendar based on the known Luna & solar cycles is simply a matter of understanding how to write such a program (The Elijah calendar app is now functioning). It is also known the Hebrews adopted the Babylonian calendar names after they returned to Judah following 70 years of exile. According to Daniel's seventy-weeks prophecy the Messiah was to appear 483 years (solar) from the decree sent forth by King Artaxerxes in 457 BC, but then he was cut off in the middle of the week (the final seven years of the 490 Hebrew calendar years). According to the gospel of John, the Messiah Jesus was baptised four days before he attended a wedding in Cana in Galilee. By using the new Elijah calendar one can use these vital clues to discern the exact start day of Messiah's ministry and then input the 1260 days into the calendar. By doing this correctly the results show that Jesus was baptised four days before the Feast of Trumpets in 27 AD and He worked his first miricle on the Feast of Trumpets when He and His disciple attended the wedding in Cana in Galilee. It was necessary for Jesus to begin his ministry before the Feast of Trumpets because this was the official start day of the Hebrew civil year when the Kings of Judah began to reign.
The starting point for King Artaxerxes first decree (solar) began on the Feast of Trumpets in 457 BC. Measuring 483 tropical years foward brings the calculation to about the tenth hour of the day on Elul 27 when Jesus was baptised in the Jordan River by John the Baptist (this day was nearly over as sunset approached). The day of Jesus baptism would be considered his first day of ministry however when doing these calculations one must start his first day from sunset on the previous day (when that Hebrew day began). Adding 1260 days to the beginning of Elul 27 in 27 AD brings the calculation to Nisan 17 (Feb. 23 in 31 AD), only a few minutes into the 17th Hebrew day when Jesus appeared to the disciples in the locked room on the eve of Nisan 16 after his resurrection and the 17th day was just beginning. Daniel 9:26 tells us Messiah would be cut off after three score and two weeks or sixty two weeks. The two decrees sent by King Artaxerxes are the two determing factors for the starting points; as previously mentioned the solar decree went forth at the Feast of Trumpets in 457 BC and the second decree went with Nehemiah who must have departed Jerusalem on the 24th day of Nisan in 445 BC. Nehemiah's Luna decree departure date was exactly 91 Hebrew calendar years from the 24th day of Nisan in 536 BC when Daniel had his chapter 10 vision of the pre-incarnate vision of Jesus (the man in linen). In the Elijah calendar app one adds exactly 483 Luna years from Nisan 24 in 445 BC, and this brings the calculation to November 11th, twelve minutes after midnight. However, the 2,3000 uncounted days of Jerusalem and it's temple's defilement (between 170-164 BC) must now be added to this calculation. Adding exactly 2,300 days brings the calculation to Nisan 21 in the year 31 AD. Nisan 21 was the last day of the Feast of Unleavened Bread. It was on Nisan 21 that Jesus commissioned the church from Jerusalem and then He ascended to heaven from the mount of Olives.
Between the two measures of time mentioned in chpater twelve (1260 days and 1278 solar days or a time,times, and half a time) the apostle John heard a loud voice in heaven declare "Now is come salvation and strength , and the kingdom of our God, and the power of His Christ: for the accuser of out brethren is cast down, which accused them before our God day and night. Notice that it was Michael the great angel that fought against the dragon when the dragon was cast out from heaven with one third of the angels. This is important because we also recall the statement Jesus made upon the return of the seventy disciples, Jesus said "I beheld Satan as lightening fall from heaven." Undoubtedly this war in heaven transpired while the 'Lord of Host', Jesus, was ministering here on planet Earth.