Date Difference Calculator

Updated on:

Calculate the difference between two dates in days, weeks, months and years.

How it works

1. Enter start date. 2. Enter end date. 3. Click Calculate.

When to use it

The date difference calculator is useful for:

  • Project management: calculate project duration between start date and deadline.
  • Legal deadlines: verify days remaining to a contractual or legal deadline.
  • Travel: calculate vacation days or trip duration.
  • Pregnancy: calculate pregnancy weeks or days remaining to the due date.
  • Work: calculate working days between two dates for planning and invoicing.

Advantages

Includes working days. Calculates in years, months, weeks, days, hours and minutes.

Benefits vs alternatives

Advantages of our calculator:

  • Multi-unit: result in years, months, weeks, days, hours and minutes.
  • Working days: also calculates business days only (excluding Saturday and Sunday).
  • Complete detail: also shows total in absolute days.
  • Free and unlimited: no restrictions on the number of calculations.

Common mistakes to avoid

  1. Start date after end date: make sure the start date is before the end date to get a positive result.
  2. Working days: the working days calculation excludes Saturday and Sunday but may not exclude national holidays specific to your country.
  3. Months of different length: the "in months" difference can vary depending on how months of 28, 30 or 31 days are handled.
  4. Time zone: dates without time are considered at the start of the day. This can affect the count if dates are in different time zones.

Description

Online Date Difference Calculator

Our date difference calculator calculates the time elapsed between any two dates, expressing the result in years, months and days. Useful for calculating project durations, contracts, work periods, or simply knowing how many days until an event.

Results Provided

  • Difference in years, months and days
  • Total days difference
  • Total weeks

Uses

Contract duration calculation, project planning, event countdown, seniority calculation, historical date differences.

FAQ

Enter the start date and end date, then click 'Calculate'. The tool shows the difference in years, months, weeks, days, hours and minutes. It also includes a working days count.

The working days count excludes Saturdays and Sundays. For precise calculations with country-specific public holidays, we recommend verifying the result with an official calendar.

Yes, enter today's date as the start date and the future date as the end date. The tool will automatically calculate the remaining days.

Try this tool now

Calculate the difference between two dates instantly. Working days included. Free.

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Category

Calculators

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