DateSpan @ Durationly.com
How far apart are
your two dates?
Pick any two dates to see exactly how far apart they are — in years, months, weeks, and days. You can also build a with multiple activities or track your weekly hours with the .
Count
Holidays
Show in output
Other Tools
More ways to work with dates.
Planning a project?
List every activity, set start and end dates, and see the duration for each task — plus a visual timeline. Use the Project Planner to map out your full schedule in one place.
Business Days Calculator
Count only Mon–Fri working days, exclude holidays, and add custom overrides.
Holiday Calendar
Public holidays for 10 countries, any year. Filter, search, and export to CSV.
Time Zone Converter
Convert any date and time across 50+ time zones. See work-hour overlaps and find the best meeting window for your global team.
Convert time zonesTime Sheet
Track hours worked per task across all 7 days. Totals calculate automatically — export to CSV when you're done.
| Task / Project | Mon | Tue | Wed | Thu | Fri | Sat | Sun | Hrs | |
|---|---|---|---|---|---|---|---|---|---|
| — | |||||||||
| Daily Total | — | — | — | — | — | — | — |
How It Works
Three steps. That's it.
Pick your dates
Choose a start date and an end date using the date pickers.
Hit calculate
Press the button and let DateSpan do the math instantly.
See your results
Get the exact duration in years, months, weeks, and days.
Coming Soon
Need more than just days?
Business days, holiday exclusions, and time zone-aware hour calculations are on the way. Drop your email and we'll let you know when they're ready.