Free calendar date calculator
How many days until any date?
Get a clear answer in seconds. Count calendar days, weekdays, weekends, weeks, and exact calendar time from today or any date you choose.
- No sign-up
- Handles past dates
- DST-safe date math
Free date tool
How many days until your date?
Use calendar dates, so daylight-saving clock changes cannot move the answer by one day.
Choose the right count
Three useful ways to compare dates
Each calculator uses the same calendar-safe method, but presents the answer for a different planning job.
Days until a date
Count forward to a trip, birthday, deadline, holiday, or personal milestone.
Open calculator 02Days between dates
Compare any two dates, including a start date that is later than the end date.
Compare dates 03Business days
Separate Monday through Friday from Saturday and Sunday for work planning.
Count weekdaysPopular countdowns
Dates people are planning for
Accurate by design
How the date count works
Calendar days, not clock hours
A date question usually means calendar dates. Simple calculators often subtract two timestamps and divide by 24 hours. That method can be wrong around daylight-saving changes because a local day can contain 23 or 25 hours. This calculator converts each selected date to a neutral calendar-day number before finding the difference. The answer therefore stays consistent across time zones and clock changes.
The standard result does not count the starting date itself. For example, Monday to Tuesday is one day. If your schedule treats both Monday and Tuesday as occupied days, select the inclusive option. The result then adds both boundary dates to the count.
Several answers for one date span
Total days are best for deadlines and countdowns. Weeks plus remaining days are easier for everyday planning. The exact calendar span expresses the same period in years, months, and days without pretending every month has the same length. Business and weekend totals help with work schedules, delivery estimates, and project plans.
Business days here are Monday through Friday only. The tool does not silently guess your location or holiday calendar. If a public holiday or company closure matters, subtract it from the weekday total after checking the calendar used by your organization.
Explore by month
Monthly countdowns
Quick answers
Date calculator FAQ
How do I calculate how many days are left until a date?
Choose today or another starting date, choose your target date, then select Calculate dates. The result shows total calendar days, weeks and days, an exact calendar span, weekdays, weekend days, and hours.
Does the calculator handle past dates?
Yes. If the target date is earlier than the start date, the result explains how many days have passed. You do not need to swap the dates manually.
Are the start and target dates included?
The default result measures the distance between the dates. Select Include both the start and target dates if your plan counts both calendar dates.
Are public holidays removed from business days?
No. Business days mean Monday through Friday. Public holidays are not removed because holiday calendars differ by country, region, and workplace.
Can a daylight-saving change alter the result?
No. The calculator compares calendar dates rather than elapsed clock milliseconds, so a 23-hour or 25-hour day cannot shift the answer.