To calculate how many days have passed since January 20, 2020, up to today, May 16, 2025:

1. From January 20, 2020, to January 20, 2025, is exactly 5 years.
2. From January 20, 2025, to May 16, 2025, is additional days.

Let's break it down:

• 5 years = 5 × 365 days + leap days
  Leap years between 2020 and 2025: 2020 and 2024 are leap years, so 2 extra days.
  Total days in 5 years = (5 × 365) + 2 = 1825 + 2 = 1827 days

• Days from January 20, 2025, to May 16, 2025:
  January 20 to January 31 = 11 days
  February (non-leap year 2025) = 28 days
  March = 31 days
  April = 30 days
  May 1 to May 16 = 16 days
  Total = 11 + 28 + 31 + 30 + 16 = 116 days

Total days from January 20, 2020, to May 16, 2025 = 1827 + 116 = 1943 days So, 1943 days have passed since January 20, 2020.