Year and Month Duration Calculator
Quickly calculate durations between dates or add/subtract years and months with this easy-to-use online tool for all your date calculation needs.

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About This Tool
This Year and Month Duration Calculator is an intuitive online tool designed for precise date and duration calculations. It allows users to determine the difference between two dates in years and months, accounting for leap years and irregularities. Additionally, users can add or subtract specific durations to/from existing dates, supporting various regional formats and user preferences.
Whether you're managing project timelines, financial forecasts, or HR schedules, this tool simplifies complex date computations into clear, actionable results. Its modern interface is responsive and accessible, ensuring smooth operation across desktop and mobile devices.
Key features include selecting start and end dates, inputting durations to add or subtract, viewing results in both raw data and user-friendly formats, and exporting options. Advanced users can toggle between date formats, review calculation history, and customize regional settings to suit their needs.
Designed with clarity and precision, this calculator enhances productivity and reduces errors in date-related tasks, making it essential for professionals across industries requiring accurate time duration management.
How to Use
1. Enter the start date (YYYY-MM-DD) or select from the date picker.
2. Enter the end date (YYYY-MM-DD) or select from the date picker.
3. Click 'Calculate' to see the duration in years and months.
4. To add or subtract durations, input values in the respective fields and click 'Apply.'
5. Review the results displayed below, with options to export or reset inputs.

FAQs/Additional Resources
Find Quick Answers
How does the calculator handle leap years?
Can I add multiple durations at once?
Is this suitable for regional date formats?
What if the API or service is down?
Can I export my calculation results?
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