A calculation is mentioned here in the Zohar Chadash. Here is the translation that I made:
At the time of the End of Days, according to the hour of the day, at the time that the sun shines, from the 6th Day, at the time that is ready according to the count of years, of Yovel and Shmitah together, which is רע"ד (Raa'd, 274 in Gematria) from the 6th Day. At that time a single voice is prepared to awaken at the heights of the upper heavens, a sad and bitter voice, such that hasn't been since the day that the world was created.There are multiple elements to this.
- This is during the 6th millenium (the 6th day)
- It is during the time that the sun shines
- Shmitah and Yovel will intersect
- It is רע"ד from the 6th Day
I have shown that the 47th Yovel from the time of Ezra was the year 5727. I have stated, without providing an explanation, that Shmitah was also in the year 5727, hinting that one who wants to learn more should look at Zohar Parshat Behar.
The Zohar also confirms the calculation.
What I haven't explained is why it says:
... according to the hour of the day, at the time that the sun shines ...
This seems to be hinting at the counting of the hours of the 6th day as 24 hours, where 5000-5500 is the 12 hours of "night" and 5500-6000 is the 12 hours of "day". This seems to be a confirmation of the validity of the system used in Kol HaTor, which is in contrast to the system used in Pirkei D'Rebbi Eliezer that we are to divide 1000 by 12 hours alone.
This statement is necessary, for there is one other instance in the 6th millenium that Shmitah and Yovel intersect during the "night", 10 Yovels prior. Of course this instance doesn't fulfill the "confirmation" statement that it is 274 from the 6th millenium.