129 weeks ago from today was 25 May 2023, a Thursday. Anytime we’re subtracting halves of the year, we need to ensure that we’re still in 2025. It looks like 129 weeks from now will bring us back to pre 2024 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 903 days on a calendar until getting my solution of Thursday May 25, 2023.
All of our day calculators are measured and QA'd by our engineer. Read more about the Git process here. But here's how 129 weeks ago gets calculated on each visit:
129 weeks is Thursday May 25, 2023 or could be if you only want workdays. This calculation takes 129 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 May 25, 2023 date.
Work weeks Solution
Monday
Tuesday
Wednesday
129 weeks back
Thursday
May 25
Friday
Saturday
Sunday
Counting back from today is Thursday May 25, 2023 using a full calendar, and is also 21672 hours ago and 39.73% of the year.
Thursday Thursday May 25, 2023 was the 145 day of the year. At that time, it was 39.73% through 2023.