How it's counted
Days since are counted from the date to today, not including the date itself.
In a spreadsheet
In Excel or Google Sheets, type =TODAY()-21 and format the cell as a date.
3 weeks before other dates
| Starting from | 3 weeks earlier |
|---|---|
| Mon, Oct 5 (today) | Monday, September 14, 2026 |
| Sun, Oct 4 | Sunday, September 13, 2026 |
| Sat, Oct 3 | Saturday, September 12, 2026 |
| Fri, Oct 2 | Friday, September 11, 2026 |
| Thu, Oct 1 | Thursday, September 10, 2026 |
| Wed, Sep 30 | Wednesday, September 9, 2026 |
| Tue, Sep 29 | Tuesday, September 8, 2026 |
Weeks ago
1 week agoMon, Sep 282 weeks agoMon, Sep 213 weeks agoMon, Sep 144 weeks agoMon, Sep 75 weeks agoMon, Aug 316 weeks agoMon, Aug 248 weeks agoMon, Aug 1010 weeks agoMon, Jul 2712 weeks agoMon, Jul 1316 weeks agoMon, Jun 1520 weeks agoMon, May 1826 weeks agoMon, Apr 652 weeks agoMon, Oct 6, 2025
Frequently asked questions
What day is 3 weeks ago?
3 weeks ago was Monday, September 14, 2026.
What day of the week is 3 weeks ago?
It was a Monday.
What was the date 3 weeks ago?
Monday, September 14, 2026. The date moves forward by one day every day, so this page always counts from today.
How many weeks is 3 weeks?
21 calendar days is 3.0 weeks.