Date Duration Calculator – Accurate Days, Weeks, Months & Years Between Any Two Dates

Need to find the number of days between two dates? Want a quick breakdown of the total weeks, months, or even an exact year-month-day count? Our Date Duration Calculator is the perfect tool for professionals, students, project managers, and anyone who needs to measure time accurately.

With a clean, mobile-responsive design powered by TailwindCSS, this tool allows you to:

Instantly calculate the number of days, weeks, and months between two selected dates.

Get an exact breakdown of the duration in years, months, and days.

Enjoy live results as soon as you change a date—no button clicking required.

Export your results to CSV or TXT files for easy record-keeping or sharing.

This tool is ideal for:

Calculating age or anniversaries

Tracking project timelines or milestones

Measuring work experience or employment history

Comparing academic or event durations

Best of all, it's 100% client-side, meaning your data never leaves your browser. Fast, private, and completely free!