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()-15 and format the cell as a date.
15 days before other dates
| Starting from | 15 days earlier |
|---|---|
| Mon, Oct 5 (today) | Sunday, September 20, 2026 |
| Sun, Oct 4 | Saturday, September 19, 2026 |
| Sat, Oct 3 | Friday, September 18, 2026 |
| Fri, Oct 2 | Thursday, September 17, 2026 |
| Thu, Oct 1 | Wednesday, September 16, 2026 |
| Wed, Sep 30 | Tuesday, September 15, 2026 |
| Tue, Sep 29 | Monday, September 14, 2026 |
Days ago
1 day agoSun, Oct 42 days agoSat, Oct 33 days agoFri, Oct 24 days agoThu, Oct 15 days agoWed, Sep 306 days agoTue, Sep 297 days agoMon, Sep 288 days agoSun, Sep 279 days agoSat, Sep 2610 days agoFri, Sep 2514 days agoMon, Sep 2115 days agoSun, Sep 2020 days agoTue, Sep 1521 days agoMon, Sep 1430 days agoSat, Sep 540 days agoWed, Aug 2645 days agoFri, Aug 2160 days agoThu, Aug 690 days agoTue, Jul 7100 days agoSat, Jun 27120 days agoSun, Jun 7180 days agoWed, Apr 8365 days agoSun, Oct 5, 2025
Frequently asked questions
What day is 15 days ago?
15 days ago was Sunday, September 20, 2026.
What day of the week is 15 days ago?
It was a Sunday.
What was the date 15 days ago?
Sunday, September 20, 2026. The date moves forward by one day every day, so this page always counts from today.
How many weeks is 15 days?
15 calendar days is 2.1 weeks.