Date Calculator

Find the number of days between dates or add/subtract time from any date. Professional date calculations with holiday support.

Date Calculation Results

Your calculation results...

Days Between Two Dates

Find the number of years, months, weeks, and days between dates. Click "Settings" to define holidays.

Add to or Subtract from a Date

years months weeks days

Understanding Date Calculations

A comprehensive date calculator provides two essential functions: calculating the time difference between two dates and adding or subtracting time periods from a specific date. These calculations are fundamental for project planning, scheduling, legal deadlines, and personal organization.

Our advanced date calculator handles all calendar complexities including leap years, varying month lengths, weekends, and holidays. The system automatically adjusts for month-end dates and provides accurate results across all time zones and calendar systems.

Quick Examples

Days Between: Jan 1, 2025 to Dec 31, 2025 = 364 days
Add Time: Aug 6, 2025 + 90 days = Nov 4, 2025
Subtract Time: Aug 6, 2025 - 2 months = Jun 6, 2025
Business Days: Calculate excluding weekends and holidays

Key Features

Days between dates - Calculate exact time differences
Add or subtract time - Move forward or backward from any date
Holiday settings - Configure business days and holidays
Multiple time units - Work with years, months, weeks, and days
Calendar integration - Easy date selection with visual calendar

Business Applications

Date calculations are crucial for business operations including contract terms, project deadlines, payment schedules, and compliance requirements. The holiday settings feature allows businesses to calculate working days accurately, excluding weekends and company-specific holidays for precise scheduling.

Legal and Financial Uses

Legal professionals use date calculators for statute of limitations, filing deadlines, and contract expiration dates. Financial applications include loan terms, investment maturity dates, and payment scheduling. The precision of these calculations is essential for legal compliance and financial accuracy.

Personal Planning

For personal use, date calculators help plan events, calculate ages, determine vacation days, and track important milestones. Whether planning a wedding, calculating pregnancy due dates, or organizing travel itineraries, accurate date calculations ensure perfect timing.

Pro Tip: Use the Settings feature to configure holidays and weekends for business day calculations. This ensures accurate project timelines and deadline calculations for professional use.

Select Date

Date Calculator Settings

Weekend Days

Business Days Only

Holidays

New Year's Day - January 1
Independence Day - July 4
Christmas Day - December 25