809 weeks ago from today was 30 May 2009, a Saturday. Anytime we’re subtracting halves of the year, we need to ensure that we’re still in 2024. It looks like 809 weeks from now will bring us back to pre 2023 and we’ll need to factor this into our subtraction because it will change the calendar and fiscal years. For larger calculations like this, I start by subtracting total days, then counting backwards 5663 days on a calendar until getting my solution of Saturday May 30, 2009.
All of our day calculators are measured and QA'd by our engineer. Read more about the Git process here. But here's how 809 weeks ago gets calculated on each visit:
809 weeks is Saturday May 30, 2009 or could be if you only want workdays. This calculation takes 809 weeks and only subtracts by the number of workdays in a week. Remember, removing the weekend from our calculation will drastically change our original Saturday May 30, 2009 date.
Work weeks Solution
Monday
Tuesday
Wednesday
Thursday
Friday
809 weeks back
Saturday
May 30
Sunday
Counting back from today is Saturday May 30, 2009 using a full calendar, and is also 135912 hours ago and 41.1% of the year.
Saturday Saturday May 30, 2009 was the 150 day of the year. At that time, it was 41.1% through 2009.