Date and time tools

Date Duration Calculator

Calculate duration between two dates.

Browser

Runs in your browser.

Fast

Open, run, copy.

Result

Result appears here.

Related tools

Calculate age from a date of birth.

Find a percentage of a number.

Estimate compound growth with contributions.

FAQ

Questions

What does the result show?

The tool shows total days and a simple years-months-days breakdown.

Can the end date be before the start date?

Yes. The tool still calculates the absolute difference.

Is any date data uploaded?

No. The calculation runs locally.