What was the date 100 days ago?
100 days ago it was
Counted in your browser from today's date where you are, not counting today.
How to count 100 days back
- Start from today's date. Today is day 0.
- Go back 100 days on the calendar, across month ends and leap days.
- From Monday, November 2, 2026, that lands on Saturday, July 25, 2026.
100 days before each federal holiday in 2027
| Holiday | 100 days before |
|---|---|
| New Year's Day (Jan 1) | Wednesday, Sep 23, 2026 |
| Martin Luther King, Jr. (Jan 18) | Saturday, Oct 10, 2026 |
| Washington's Birthday (Feb 15) | Saturday, Nov 7, 2026 |
| Memorial Day (May 31) | Saturday, Feb 20 |
| Juneteenth (Jun 19) | Thursday, Mar 11 |
| Independence Day (Jul 4) | Friday, Mar 26 |
| Labor Day (Sep 6) | Saturday, May 29 |
| Columbus Day (Oct 11) | Saturday, Jul 3 |
| Veterans Day (Nov 11) | Tuesday, Aug 3 |
| Thanksgiving Day (Nov 25) | Tuesday, Aug 17 |
| Christmas Day (Dec 25) | Thursday, Sep 16 |
Other counts: 90 days ago · 120 days ago · 100 days from today · any number of days.
Frequently asked questions
What was the date 100 days ago?
Count 100 days back on the calendar, not counting today. From Monday, November 2, 2026, 100 days ago was Saturday, July 25, 2026. The answer at the top of this page uses your own date.
How many weeks ago is 100 days?
100 days is 14 weeks and 2 days, 2,400 hours, or 3.29 average months.
Does 100 days ago include today?
No. Today is day 0, yesterday is 1 day ago, so 100 days ago is 100 calendar days before today. If you count today as day 1, the date moves one day later: Sunday, July 26, 2026 from Nov 2.
Is 100 days ago the same as 3 months ago?
Not exactly. 3 calendar months last from 89 to 92 days depending on the months crossed, so "3 months ago" and "100 days ago" can land on different dates. A lookback written in days is counted in days.