The Day that is believed the closing of heaven's door occurs for the year. YOM KIPPUR

Matt 25:10-13  AND WHILE THEY WENT TO BUY THE BRIDEGROOM CAME; AND THEY THAT WERE READY WENT IN WITH HIM TO THE MARRIAGE: AND THE DOOR WAS SHUT. AFTERWARD CAME ALSO THE OTHER VIRGINS, SAYING, LORD, LORD OPEN TO US. 12. BUT HE ANSWERED AND SAID, VERILY I SAY UNTO YOU, I KNOW YOU NOT. 13. WATCH THEREFORE, FOR YE KNOW NEITHER THE DAY NOR THE HOUR WHEREIN THE SON OF MAN COMETH.

The concluding service of Yom Kippur, known as Ne'ilah, is one unique to the day. It usually runs about 1 hour long. The ark (a cabinet where the scrolls of the Torah are kept) is kept open throughout this service, thus you must stand throughout the service. There is a tone of desperation in the prayers of this service. The service is sometimes referred to as the closing of the gates; think of it as the "last chance" to get in a good word before the holiday ends. The service ends with a very long blast of the shofar.  Reference http://www.jewfaq.org/holiday4.htm
It is customary to wear white on the holiday, which symbolizes purity and calls to mind the promise that our sins shall be made as white as snow (Is. 1:18). Some people wear a kittel, the white robe in which the dead are buried .
Here is the 24 elder Key:
In the temple services there were 24 courses of priests on duty throughout the year. They rotated in and out of the service each sabbath day remaining for one full week or rotation. ***keep in mind the 24 elders around the throne in the book of Revelation-emphasis mine. John the Revelator spoke of seeing these 24 all together in the throne room when he was told to "come up hither". They have ALREADY RECEIVED THEIR CROWNS AND WHITE LINEN.  ***The only time the 24 courses were REQUIRED to be in the Temple ALL TOGETHER was during the "Feast of Tabernacles"
----This is my thinking on this. Bear with me here and follow the thread, I will paint a scenario and see what you think.
Yom Kippur has a final "Trumpet Blast" called the tekiah gedolah
The command to blow the shofar is given in the Torah without explanation, but Rabbis have provided many interpretations to the meaning of the Shofar. Maimonides (Jewish philosopher and physician born in Spain in the 12 century) writes:
" Awake, sleepers from your sleep! Arise, slumberers, from your slumber! Scrutinize your deeds and return to repentance and remember your creator! Those forgetters of the truth in the vanities of time and those who stray all their year in vanity and emptiness which can neither help nor save. Look to your souls, better your ways and deeds. Let each one of you abandon your evil way and your thoughts which are not good."
http://www.biblicalgallery.com/GALLERY/ShofarSounds.HTM

What if this was the cry/trumpet that both the ten virgins heard and John the Revelator heard that sounded like the Lord speaking? The five wise were ready, the five foolish went to purchase more oil. Five days later is the Feast of Tabernacles with seven days plus it's octive. The five foolish would have met with A CLOSED DOOR by then!!
Rumor has it that more weddings occur on the day AFTER YOM KIPPUR....
The Lord has had me studying the 24 courses of the priests, their duties and Yom Kippur very closely this week...could it be that we may be going to "change the priestly course" on the sabbath, which just so happens to be Yom Kippur?  We shall see....
Looking up and Loving the learning process! Kelly in Dallas  ***as Eric says-"See ya in the air!"