April 8th is normally the 98th day of the year but since 2024 is Leap Year April 8th is the 99th day of the year.
September 11 date leaves 111 days left in the year.
From this September 11, 2023 to April 8th 2024 is exactly 210 days and in gematria you drop the zeroes for 21. Same as they year 2001 when the original 911 happened would also be a 21.
21 is '777' but also 21 is symbolic for 2 into 1. The is why they dropped the twin towers and replaced with 1 tower.
There is another 911 between these dates as 4/8/2024 is the 99th day of year and 9/11/2023 is the 111th.