From first Q post to 777% of a month Tisha B'Av

 From and including: Saturday, October 28, 2017

To and including: Sunday, August 3, 2025

Result: 2837 days

777.26% of a common year (365 days)

Sun, 3 August 2025 = 9th of Av, 5785

ט׳ בְּאָב תשפ״ה

✡️ Tish’a B’Av ✡️

Parashat Vaetchanan