Date Difference Calculator | Duration & Business Days

Calculate date duration, switch to business-day counts excluding weekends, or add/subtract years-months-days to project future and past dates.

When Should You Use This Calculator?

Calculating business days excluding weekends and holidays
Comparing date ranges across multiple scenarios
Tracking date calculations with custom holiday settings
Planning project timelines with persistent calculation history

Key Features:

Three modes: Duration, Business Days, and Add/Subtract
Business days calculator excluding weekends and holidays
Quick date presets for common calculations

Frequently Asked Questions

Does this calculate business days?

Yes! Select "Business Days" mode to exclude weekends. You can also manually adjust for public holidays to get an exact working-day count.

Is the end date included in the count?

By default, date difference (e.g., "how many days until") excludes the start date but includes the end date. You can adjust "Include end date" in settings.

Can I export my Date Difference calculations?

Yes! In guest mode, you can export your calculations to JSON format. Sign in is required for PDF and CSV export. Click the export button to download your results. This is perfect for record-keeping, sharing with others, or importing into other tools.

Does this calculator save my history?

Yes! Your calculation history is automatically saved. Guest users can save up to 50 calculations per workspace locally. Sign in for free to save up to 100 calculations per workspace, with access from any device when logged in.

Is this calculator free to use?

Absolutely! The Date Difference is completely free with no sign-up required. Create a free account to unlock additional features like more calculation history, multiple workspaces, and the ability to access your saved data from any device.

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About CalcTrail

CalcTrail is a comprehensive free online calculator platform offering a comprehensive collection of specialized calculators for finance, health, academics, engineering, AI tools, and more. All calculators are free to use with no sign-up required. Create an account to save your work, access unlimited calculation history, workspace management, and custom variables.

This calculator is part of CalcTrail's collection of professional-grade tools designed for students, professionals, and anyone who needs accurate calculations. Export your results to PDF, JSON, or CSV formats. All calculations are performed client-side for privacy and speed.

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