Not to quibble about details…but making the assumption that Jesus fulfills the fall feasts of 2021 (due to the stake in the ground from the Rev 12 sign which is a mid-trib sign), and adhering to the word from His mouth in Matthew 24…”Immediately after the Tribulation in those days…gather the elect, trumpet…etc.” the FOT is Sept 7 to Sept 9, 2021 range based on the calculated Hebrew calendar and Torah Calendar…
That puts the end of the tribulation as late as Sept 8, 2021 and subtract 2520 day (Daniel’s 70th week duration) you get Wednesday, Oct 15, 2014 for the latest the tribulation can start. If the tribulation starts ONE DAY later, Jesus will miss the FOT in 2021… which would put him into another year.
Therefore, any day past Oct 14, 2014 will push Jesus FOT’s fulfillment past FOT 2021. Based on this, the rapture timing window is from this point (NOW) up until Oct 14, 2014. Using the calculated calendar, Oct 14, 2014 is the 6th day of Sukkot. (we have got UP TO 15 days left). Remember, we could go anytime between now then then…
Jesus said: "Therefore be watchful all the time, praying that you may be counted worthy to escape all these things that will happen, and to stand before the Son of Man.”