Local and instant calculation

Days Between Dates Calculator

Calculate how many days there are between a start date and an end date for events, deadlines, travel, projects or tasks.

Select both dates and get the result automatically without sending information to a server.

Free date tool

Days Between Dates

Calculate how many days there are between two dates for events, deadlines, planning or tasks.

Days between dates

Calculate days between two dates

Choose two dates and calculate the number of days, inclusive days and approximate weeks.

Days between dates

364

Including both dates

365

Approximate weeks

52.00

1

How to calculate the days between two dates

Select a start date and an end date. The tool automatically calculates the difference using calendar days while accounting for the actual length of each month and leap years.

2

What you can use the calculation for

  • Calculate the duration of a project.
  • Find how many days remain until an event.
  • Review expiration dates and deadlines.
  • Plan travel or reservations.
  • Measure elapsed time between events.
  • Organize tasks within a deadline.
3

Things you should check

  • Make sure the start and end dates are in the correct order.
  • Determine whether your period includes both the first and last day.
  • The tool calculates calendar days, not business days.
  • Weekends and holidays are not automatically excluded.
  • For legal or tax deadlines, verify the official counting method.

Check how the dates should be counted

Some deadlines include both the start and end date, while others count only the elapsed days between them. For legal or tax deadlines, always confirm the applicable counting method.

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