Date & Time Tools – Header with Mega Menus

Date Calculator

Add or subtract days, weeks, months, and years from any date

ℹ️ Enter values for any combination of days, weeks, months, and years. Leave fields at 0 to skip them.
Time to add/subtract:
Quick select:

When checked, the starting date counts as day 1

Calculation Result

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Calculation

TimeDateTools.com offers the most comprehensive online date calculator, enabling users to perform complex date arithmetic with remarkable ease and precision. Our versatile date calculator allows you to add or subtract days, weeks, months, or years from any given date, making it indispensable for deadline planning, appointment scheduling, and future date predictions. This free online tool handles various calendar systems and automatically adjusts for leap years, ensuring your calculations remain accurate regardless of complexity. Whether you’re calculating contract expiration dates, planning vacation schedules, or determining future milestones, our date calculator provides instant, reliable results. The user-friendly interface accepts multiple date formats and displays results in clear, easy-to-understand formats. Business professionals rely on our online date calculator for project management, while individuals use it for personal planning and important life events. With TimeDateTools.com, you get access to advanced date calculation features without any cost or registration requirements. Our date calculator works flawlessly on desktop computers, tablets, and mobile devices, ensuring you have powerful date computation tools available wherever you go.

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