Date to Date Calculator: Calculate Days Between Dates
Our free Date to Date Calculator at Free Calculator helps you count days between dates, add or subtract days, and find future/past dates effortlessly. Whether you’re planning events, tracking deadlines, or calculating age, this tool provides instant, accurate results for personal, academic, and professional use.
Key Features Date to Date Calculator
✔ Days Between Dates – Calculate duration between two dates
✔ Add/Subtract Days – Find future or past dates from a start date
✔ Workday Mode – Exclude weekends/holidays
✔ Age Calculator – Determine exact age in years/months/days
✔ Mobile-Friendly – Works on all devices
How to Use Date to Date Calculator?
1. Calculate Days Between Two Dates
- Enter Start Date (e.g., project start)
- Enter End Date (e.g., deadline)
- Get Results:
- Total days
- Years/Months/Days breakdown
Example:
- Start: Jan 1, 2023
- End: Dec 31, 2023
- Result: 364 days (11 months, 30 days)
2. Add or Subtract Days
- Enter Base Date (e.g., today)
- Add/Subtract Days (e.g., +30 days)
- Get New Date
Example:
- Base Date: May 1, 2024
- Add: 90 days
- Result: July 30, 2024
3. Business Days Calculator
- Toggle “Exclude weekends” to count only workdays.
- Optional: Add custom holidays.
Example:
- Start: May 1, 2024 (Wednesday)
- Duration: 10 business days
- Result: May 15, 2024 (Skips weekends)
Why Use Our Date to Date Calculator?
✅ 100% Free & No Ads – Unlimited access, no registration
✅ Multiple Functions – Days between dates, age finder, workday planner
✅ Accurate Results – Accounts for leap years, month lengths, and time zones
✅ Save/Share Results – Download or print date logs
✅ Dark/Light Mode – Eye-friendly display
Date to Date Calculation Formulas
1. Days Between Dates
Uses Julian Day Numbers for precision:Days=End Date Julian Day−Start Date Julian DayDays=End Date Julian Day−Start Date Julian Day
2. Add/Subtract Days
- Converts dates to serial numbers, then adds/subtracts days.
- Adjusts for month/year transitions (e.g., Jan 31 + 1 day = Feb 1).
3. Business Days Calculation
- Skips Saturdays/Sundays by default.
- Formula:Workdays=Total Days−(Weekends+Holidays)Workdays=Total Days−(Weekends+Holidays)
Practical Uses of Date to Date Calculator
| Scenario | How It Helps |
|---|---|
| Project Management | Track deadlines & milestones |
| Travel Planning | Count days until trips or visas expire |
| Academic | Calculate study periods or exam dates |
| Legal | Determine contract durations |
| Personal | Plan events, pregnancies, or anniversaries |
Frequently Asked Questions (FAQs)
From project timelines to personal milestones, our Date to Date Calculator simplifies date-related math. Bookmark Free Calculator for free access to this and other time-saving tools!
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