What was the date 100 weeks ago?

Solution

Thursday December 22, 2022

0

100 weeks ago from today was 22 Dec 2022, a Thursday. Anytime we’re subtracting halves of the year, we need to ensure that we’re still in 2024. It looks like 100 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 700 days on a calendar until getting my solution of Thursday December 22, 2022.

How we calculated 100 weeks before today

All of our day calculators are measured and QA'd by our engineer. Read more about the Git process here. But here's how 100 weeks ago gets calculated on each visit:

  1. We started with date inputs: used current day of 21 Nov, then set the calculation - 100 weeks, and factored in the year 2024
  2. Noted your current time of year: 100 weeks in November will bring us back to October or further.
  3. Counted backwards weeks from current day: date - 21 Nov, factoring in the 21 days left in November to calculate Thursday December 22, 2022
  4. Did NOT factor in workdays: In this calculation, we kept weekend. See below for just workdays or the fiscal calendar

Tips when solving for December 22

  • Current date: 21 Nov
  • Day of the week: Thursday
  • New Date: Thursday December 22, 2022
  • New Date Day of the week: Thursday
  • December marks the end of the year, so account for all the out of office notifications when counting backwards.
  • This calculation crosses at least one month. Remeber, this will change our day of the week.
  • The solution crosses into a different year.

Ways to calculate 100 weeks ago

  1. Calculate it: Start with a time ago calculator. 100 weeks is easiest solved on a calculator. For ours, we've already factored in the 21 days in November + all number of days in each month and the number of days in . Simply add your weeks and choose the length of time, then click "calculate". This calculation does not factor in workdays or holidays (see below!).
  2. Use November's calendar: Begin by identifying 21 Nov on a calendar, note that it’s Thursday, and the total days in October (trust me, you’ll need this for smaller calculations) and days until last year (double trust me, you'll need this for larger calculations). From there, count backwards 100 times weeks by weeks, subtracting weeks from until your remainder of weeks is 0.
  3. Use excel: For more complex weeks calculations or if you h8 our site (kidding), I use Excel functions like =TODAY()-100 to get or =WORKDAY(TODAY()), -100, cell:cell) for working weeks.

Working weeks in 100 calendar weeks

100 weeks is Thursday December 22, 2022 or could be if you only want workdays. This calculation takes 100 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 December 22, 2022 date.

Work weeks Solution

Date 100 work weeks ago
Thursday March 17, 2022

Week of Thursday December 22, 2022

Monday

Tuesday

Wednesday

100 weeks back

Thursday

December 22

Friday

Saturday

Sunday

The past 100 weeks is equivalent to:

Counting back from today is Thursday December 22, 2022 using a full calendar, and is also 16800 hours ago and 97.53% of the year.

100 weeks = 16800 hours

100 weeks = 22.581 months

100 weeks = 100.0 weeks

100 weeks = 1.918 years

100 weeks = 1008000 minutes

100 weeks = 60480000 seconds

Did you know?

Thursday Thursday December 22, 2022 was the 356 day of the year. At that time, it was 97.53% through 2022.

Similar days before problems

In 100 weeks, the average person Spent...

  • 150360.0 hours Sleeping
  • 19992.0 hours Eating and drinking
  • 32760.0 hours Household activities
  • 9744.0 hours Housework
  • 10752.0 hours Food preparation and cleanup
  • 3360.0 hours Lawn and garden care
  • 58800.0 hours Working and work-related activities
  • 54096.0 hours Working
  • 88536.0 hours Leisure and sports
  • 48048.0 hours Watching television

What happened on December 22 (100 weeks ago) over the years?

On December 22:

  • 1936 Filmmaker Billy Wilder (30) weds first wife Judith Coppicus
  • 1894 United States Golf Association forms in New York