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()-100 and format the cell as a date.
100 days before other dates
| Starting from | 100 days earlier |
|---|---|
| Mon, Oct 5 (today) | Saturday, June 27, 2026 |
| Sun, Oct 4 | Friday, June 26, 2026 |
| Sat, Oct 3 | Thursday, June 25, 2026 |
| Fri, Oct 2 | Wednesday, June 24, 2026 |
| Thu, Oct 1 | Tuesday, June 23, 2026 |
| Wed, Sep 30 | Monday, June 22, 2026 |
| Tue, Sep 29 | Sunday, June 21, 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 100 days ago?
100 days ago was Saturday, June 27, 2026.
What day of the week is 100 days ago?
It was a Saturday.
What was the date 100 days ago?
Saturday, June 27, 2026. The date moves forward by one day every day, so this page always counts from today.
How many weeks is 100 days?
100 calendar days is 14.3 weeks.