How many days until a holiday, an exam or a deadline? What date is 90 days from today? How many days are there between two dates? This page answers all three with a countdown, a date adder and a day counter.
Everything updates as you type, and weekdays are shown so you can plan around weekends.
How to use
- Countdown: pick a target date — the “from” date defaults to today.
- Add days: pick a start date and enter a number of days (negative to go back).
- Days between: pick two dates and choose whether to include both ends.
Why use Deftivo
Three answers on one page
Countdown, date after N days and days between dates, without switching tools.
Calendar-accurate
Month lengths and leap years are handled, and time zones never shift the result by a day.
Weeks included
Results are also shown in weeks and days, which is handy for projects and pregnancies.
Frequently asked questions
Should I include both the start and end date?
For hotel nights or elapsed time, leave it off. For counting calendar days of an event (e.g. a 3-day festival), turn it on.
What does “count the start date as day 1” mean?
Anniversary counting: if you met on day 1, your 100th day is 99 days later. Turn it off for plain “N days after” arithmetic.
Can it count backwards?
Yes. Enter a negative number of days, or pick a target date in the past to see how long ago it was.