The September 11 attacks (9/11) occurred on September 11, 2001. To calculate how long it has been since 9/11 as of today, May 16, 2025:
- From September 11, 2001, to September 11, 2024, is 23 years.
- From September 11, 2024, to May 16, 2025, is 8 months and 5 days.
So, it has been 23 years, 8 months, and 5 days since 9/11.
