81 weeks ago from today was 30 Oct 2022, a Sunday. Anytime we’re subtracting halves of the year, we need to ensure that we’re still in 2024. It looks like 81 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 567 days on a calendar until getting my solution of Sunday October 30, 2022.
All of our day calculators are measured and QA'd by our engineer. Read more about the Git process here. But here's how 81 weeks ago gets calculated on each visit:
81 weeks is Sunday October 30, 2022 or could be if you only want workdays. This calculation takes 81 weeks and only subtracts by the number of workdays in a week. Remember, removing the weekend from our calculation will drastically change our original Sunday October 30, 2022 date.
Work weeks Solution
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
81 weeks back
Sunday
October 30
Counting back from today is Sunday October 30, 2022 using a full calendar, and is also 13608 hours ago and 83.01% of the year.
Sunday Sunday October 30, 2022 was the 303 day of the year. At that time, it was 83.01% through 2022.