470 weeks ago from today was 26 Nov 2015, a Thursday. Anytime we’re subtracting halves of the year, we need to ensure that we’re still in 2024. It looks like 470 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 3290 days on a calendar until getting my solution of Thursday November 26, 2015.
All of our day calculators are measured and QA'd by our engineer. Read more about the Git process here. But here's how 470 weeks ago gets calculated on each visit:
470 weeks is Thursday November 26, 2015 or could be if you only want workdays. This calculation takes 470 weeks and only subtracts by the number of workdays in a week. Remember, removing the weekend from our calculation will drastically change our original Thursday November 26, 2015 date.
Work weeks Solution
Monday
Tuesday
Wednesday
470 weeks back
Thursday
November 26
Friday
Saturday
Sunday
Counting back from today is Thursday November 26, 2015 using a full calendar, and is also 78960 hours ago and 90.41% of the year.
Thursday Thursday November 26, 2015 was the 330 day of the year. At that time, it was 90.41% through 2015.