What This Tool Does
Calculate the duration between two dates in years, months, and days.
This date duration calculator finds the exact time between any two dates. Get results in years, months, days, weeks, and business days.
When to Use This Tool
- Calculate project duration
- Count days until deadline
- Plan events and schedules
- Track time between milestones
How to Use
- Select start and end dates
- Click Calculate
- View duration breakdown
Frequently Asked Questions
How do I calculate days between two dates?
Enter your start date and end date, then click Calculate. The
tool
shows total days, weeks, months, years, and business days between the two dates. The
calculation includes both the start and end dates.
What are business days?
Business days are Monday through Friday, excluding weekends
(Saturday and Sunday). This calculator counts business days automatically, useful
for
project timelines, shipping estimates, and work scheduling. Holidays are not
excluded.
Does this include the start and end dates?
Yes, the calculation includes both the start and end dates. For
example, from January 1 to January 3 equals 3 days (January 1, 2, and 3). This is
sometimes called "inclusive counting."
How accurate is the months calculation?
The total months calculation uses an average of 30.44 days per
month. For precise calendar months, refer to the years, months, and days breakdown
shown
in the results, which accounts for varying month lengths.
Can I calculate duration for past dates?
Yes, you can calculate the duration between any two dates, past
or
future. This is useful for calculating age, time elapsed since an event, or time
remaining until a deadline. The start date must be before the end date.