How do I calculate days between two dates?

To calculate days between two dates, enter your start date in the first field and end date in the second field, then click 'Calculate Days'. The tool will instantly show the total days, plus breakdown in weeks, months, years, hours, minutes, and seconds. It also displays weekday vs weekend counts for work planning.

How many business days between two dates?

Our calculator automatically shows the number of weekdays (business days) between your selected dates. This excludes Saturdays and Sundays, making it perfect for project planning, contract deadlines, and work-related time calculations. The weekday count appears in the 'Work Days' section of the results.

Does the calculator account for leap years?

Yes! The days between dates calculator automatically accounts for leap years when calculating the duration. Leap years occur every 4 years (with exceptions for century years not divisible by 400). This ensures accurate calculations for any date range, providing precise day counts regardless of leap year dates.

Can I use this for project planning?

Absolutely! This calculator is perfect for project planning. Calculate project duration, track deadlines, schedule milestones, and determine resource allocation timeframes. The weekday breakdown helps you plan work schedules, while the total days view helps with overall timeline management. It's ideal for project managers and planners.

How accurate is the date calculator?

The calculator is completely accurate. It properly accounts for leap years, varying month lengths (28-31 days), and uses precise date arithmetic. Calculations are performed using standardized browser date functions. Results show exact duration down to the second for complete precision in all time units.

What day of the week will a date fall on?

The calculator shows what day of the week both your start and end dates fall on. This information appears in the 'Day Info' section after calculation. It helps you plan events, schedule meetings, and understand the calendar context of your date range. Each date shows the full weekday name.

Can I calculate event countdowns?

Yes! Use the calculator to create event countdowns for weddings, vacations, concerts, product launches, or any special event. Enter today's date as the start date and your event date as the end date to see exactly how many days, weeks, and months remain until your event arrives.

How do I calculate relationship duration?

To calculate relationship duration, enter your relationship start date as the start date and today's date (or a specific anniversary date) as the end date. The calculator will show exactly how long you've been together in days, weeks, months, and years. Perfect for celebrating anniversaries and milestones.

Is my data private and secure?

Yes! All calculations happen entirely in your browser. No dates, personal information, or calculation results are sent to any server, stored in databases, or shared with third parties. Your privacy is completely protected as everything processes locally on your device. The calculator works offline once loaded.

Can I use this for financial calculations?

Absolutely! The calculator is excellent for financial calculations including loan periods, investment durations, billing cycles, interest accrual periods, and payment schedules. The accurate day count helps with precise financial planning, and the weekday breakdown is useful for business-related financial calculations.

Days Between Dates Calculator

Calculate the exact number of days, weeks, months, and years between two dates

Start Date *

End Date *

Free Days Between Dates Calculator

Calculate the exact number of days between two dates with our free online calculator. Find out the duration in days, weeks, months, years, hours, minutes, and seconds. Perfect for project planning, event countdowns, relationship milestones, or tracking any time period.

Our calculator automatically accounts for leap years, varying month lengths, and provides additional insights like weekday vs weekend breakdown. All calculations are instant and completely private.

How to Use

Enter your start date in the first field using the date picker or by typing.
Enter your end date in the second field.
Click "Calculate Days" to see the complete breakdown.
View results in multiple formats including days, weeks, months, years, and more.
See weekday and weekend breakdown for work planning.
Click "Reset" to start a new calculation.

Common Use Cases

Project Planning: Calculate project duration, deadline tracking, milestone scheduling, and resource allocation timeframes.

Event Countdowns: Track days until weddings, vacations, concerts, product launches, or any special event.

Work Planning: Calculate business days for contracts, delivery estimates, project timelines, and payroll periods.

Relationship Tracking: Celebrate anniversaries by tracking days together, relationship milestones, or special moments.

Financial Calculations: Calculate loan periods, investment durations, billing cycles, and interest accrual periods.