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Date Difference

Calculate days between dates and review the date range as days, weeks, and years, months, and days.

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Core concept

What date difference means

Date difference is the count of days between a start date and an end date, with optional inclusive counting for the end boundary.

The calculator compares selected calendar dates and returns a total day span, then breaks it down into weeks and years, months, and days for practical planning.

Use inclusive mode when you need both endpoints counted as part of the range; use exclusive mode when the interval should stop before the end date.

Days between dates

The core result is a total day value, and a negative total may appear if the end date is earlier than the start date.

Weeks, months, and years

A detailed decomposition helps compare durations in schedules, project plans, and deadline gaps.

Inclusive setting

Toggling sertakan tarikh akhir changes whether the end day is counted as day 1 when start and end are identical.

Confirm the date order and inclusion rule before you copy a result into a ticket, plan, or report.

Date range
Date difference result

How to use

  1. 1 Select the start date and end date.
  2. 2 Turn on the sertakan tarikh akhir option if needed.
  3. 3 Calculate the difference, then review and copy the result.

Common use cases

  • Project duration in days
  • Days between two dates
  • Inclusive date range counting
  • Weeks and days breakdown

Frequently asked questions

What date differences can I calculate?

Choose a start date and end date to calculate total days, a years, months, and days breakdown, and weeks plus remaining days.

What does the sertakan tarikh akhir option do?

When sertakan tarikh akhir is enabled, one day is added so the same start and end date counts as 1 day. You can copy the result to the clipboard.

Can it calculate when the end date is before the start date?

Yes. The total days result is shown with a negative sign, while the detailed years, months, and days values show the absolute gap between the dates.

Related workflow

Date DifferenceSet the start and end dates first to get the actual duration. → Age CalculatorIf the range is based on a birth date, continue with age and birthday intervals. → Unit ConverterConvert the resulting days or time value into the unit you need.