# Date Calculator

> Calculate days between dates, add or subtract days from a date, count business days, and find days from today. Works as a date calculator, date duration calculator, days between dates calculator, add days calculator, subtract days calculator, business days calculator, calendar calculator, countdown calculator, and weekday calculator.

**URL:** https://www.calculatoranswers.com/date-calculator
**Category:** Everyday Life

## Quick Answer

Calculate the number of days between two dates, or determine a past or future date by adding or subtracting days. Toggle modes to compute calendar days or business days.

## Definition

A date calculator is a calendar tool used to determine duration between two specific dates or to project a target date in the past or future. It performs time calculations by adding or subtracting days, weeks, months, or years from a reference point. The tool frequently handles adjustments for leap years, variable month lengths, and business-day exclusions. Project managers, legal professionals, and planners use it to track project deadlines, verify legal timelines, and organize schedules.

## How to Use

1. **Choose date operation mode** — Select whether you are calculating the duration between two dates or adding/subtracting days from a date.
2. **Input starting date** — Set the reference starting date using the calendar pickers.
3. **Enter secondary values** — Specify the second date, or type the number of days, weeks, or months to add or subtract.
4. **View calculated date result** — Read the final target date or the counted days shown in the outputs section.

## Disclaimer

This calculator provides estimates for educational and planning purposes. Always consult a qualified professional for specific advice on financial, medical, legal, or other regulated decisions.

---

*This page is part of Calculator Answers — simple calculators, clear answers, no signup required. View all calculators at https://www.calculatoranswers.com/calculators*