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Date Duration Calculator

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FAQ

What is a Date Difference Calculator?

It’s a tool that calculates the number of days between two dates. You can use it to estimate project duration, vacation length, or event period — simply enter the start and end dates to get results instantly.

What does the “Include end day” option mean?

When checked, the calculation includes the end date itself (adds 1 day). For example: from 2024-01-01 to 2024-01-03 — unchecked = 2 days, checked = 3 days.

How is the date difference calculated?

It calculates the number of days from the start date to the end date. The system automatically ensures the end date is not earlier than the start date.

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