# Date Calculator

> Days Between Dates, Date Arithmetic & Business Days - 100% Private

Free online date calculator. Calculate days between dates, add subtract days/weeks/months/years, count business days. 100% private browser processing. AI hallucinates date math - we deliver deterministic results.

URL: https://tools.scoreroute.com/tools/date-calculator/

Markdown: https://tools.scoreroute.com/tools/date-calculator/.md

## Date Arithmetic & Calculation

This calculator performs precise, deterministic date arithmetic entirely in your browser. There are three modes: