Free Online Date Difference Calculator – Days, Weeks, Workdays & Hours | Eqsy.io
The Eqsy.io Date Difference Calculator instantly calculates the number of days, weeks, weekdays, work weeks, months, and years between two dates.
It also converts total time into hours — including options for 24 h/day, 7.5 h workdays, 8 h workdays, or a custom number of hours per day.
Perfect for scheduling, payroll, project planning, and personal date tracking.
Simply enter your start and end dates, choose whether to include the last day, and select Count weekdays only if you want to exclude weekends.
Date Difference Calculator
Calculate days, weeks, months, years, hours, weekdays, work hours, and work weeks between two dates.
🔹 How to Use the Date Difference Calculator
Select the Start and End Dates
Pick any two dates in the date fields. The calculator will automatically swap them if the order is reversed.Include End Date (optional)
Check Include end date if you want to count the final day in your total.Count Weekdays Only (optional)
Enable Count weekdays only to exclude Saturdays and Sundays.Set Custom Work Hours (optional)
Enter your own daily working hours (for example 7.5 or 8 hours) to get total work hours and work weeks.Click “Calculate”
The results will show:Total days, weeks, and months
Calendar breakdown (years, months, days)
Total hours (24 h × days)
Weekdays only count
Work weeks (based on 5 days = 1 week)
Work hours for 7.5 h, 8 h, and custom settings
Use “Swap” or “Reset” as needed
Quickly exchange dates or clear all inputs.
What can I calculate with this tool?
You can calculate the number of days, weeks, months and houers between any two valid dates.
Can I calculate past and future dates?
Yes. You can compare any dates, whether they are in the past, future, or today.
Does the tool account for leap years?
Yes, leap years are automatically included, so calculations are accurate.
Can I use different date formats?
Yes. You can enter dates in standard formats (DD/MM/YYYY or MM/DD/YYYY), and the calculator will recognize them.
Do I need an account to use this tool?
No. It’s 100% free to use without any signup.
What does “Include end date” mean?
When checked, the end date is counted in the total (for example, Jan 1 – Jan 3 = 3 days instead of 2).
How do weekdays and work hours work?
Selecting Count weekdays only ignores Saturdays and Sundays.
Work hours are then calculated based on 7.5 h/day, 8 h/day, and your custom value.
What are “Work weeks”?
Work weeks are calculated as total weekdays ÷ 5.
For example, 25 weekdays = 5 work weeks.
Can I enter a custom number of work hours per day?
Yes — type any number (e.g. 6, 7.5, 8.5) in the custom field to instantly see new totals.
Does this store my data?
No. Everything runs locally in your browser – nothing is uploaded or saved.
🔹 About the Date Difference Calculator
The Eqsy.io Date Difference Calculator is a fast, accurate, and free online tool for anyone who needs to measure time between two dates.
It’s built for flexibility — use it for event planning, employee time tracking, construction scheduling, education, or even personal milestones.
Key Features:
📅 Days, weeks, months, and years
🕒 Total hours (24 h/day)
🗓️ Weekdays only (Mon–Fri)
💼 Work hours for 7.5 h/day, 8 h/day, and custom values
📆 Work week calculation (5 days = 1 week)
🔄 Optional end-date inclusion and smart date swapping
Simple, accurate, and mobile-friendly — the Eqsy.io Date Difference Calculator helps you turn any two dates into clear, useful time data in seconds.
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