What Date is 21 Days Ago From Today?
Are you trying to figure out what the date was twenty-one days ago?

Date 21 Days Ago
Friday September 1, 2023
The date 21 days ago from today is Friday September 1, 2023. This calculation is made using the date today, which is September 22, 2023.
You can validate this result using our days from today calculator or our time duration calculator.
Start Date | Date 21 Days Prior |
---|---|
September 18, 2023 | August 28, 2023 |
September 19, 2023 | August 29, 2023 |
September 20, 2023 | August 30, 2023 |
September 21, 2023 | August 31, 2023 |
September 22, 2023 | September 1, 2023 |
September 23, 2023 | September 2, 2023 |
September 24, 2023 | September 3, 2023 |
September 25, 2023 | September 4, 2023 |
September 26, 2023 | September 5, 2023 |
How to Calculate the Date 21 Days Ago
You can figure out the date twenty-one days ago by hand using a calendar. Look at the calendar and look backward one day at a time while also subtracting one from 21 for each day you look backward.
You can also move backward one week at a time while subtracting seven from 21 for each week you look backward.
Continue this process until your original number has reached zero after subtracting the days. This is the date 21 days ago.
You can use a tool such as our day counter to simplify this process.
21 Weekdays Ago From Today
If you want to consider only weekdays and ignore days that fall on the weekend, then twenty-one weekdays ago is Thursday August 24, 2023.
Date 21 Weekdays Ago
Thursday August 24, 2023
It's important to note that this date does not consider holidays that may fall on a weekday. So, you'll need to adjust this to account for holidays if you're trying to calculate the date 21 business days ago.