Days Between Dates

Enter a start and end date to see the difference in calendar days, business days, weeks, months, and a clear interval breakdown.

Обработка выполняется локально в браузере. Данные не отправляются на сервер.

For this tool, processing runs locally in your browser and data is not sent to the server.

Дней между датами is a free online tool. Укажите дату начала и дату окончания, чтобы узнать разницу в календарных днях, рабочих днях, неделях, месяцах и получить понятную расшифровку интервала. Обработка выполняется локально в браузере. Данные не отправляются на сервер.

What it does

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How to use

Enter the start date.
Enter the end date.
Choose a mode: calendar days, include both dates, business days only, or weekends only.
Review the difference, week count, business days, and weekend days.
Copy the result or detailed report.

More about this tool

The Days Between Dates tool calculates the difference between two dates directly in your browser. It shows calendar days, an interval with both dates included, business days, weekend days, weeks, and a detailed period breakdown. The calculator is useful for contracts, deadlines, task timelines, vacations, study, projects, reports, and personal planning. Calculation runs locally in your browser, and your data is not sent to the UtiLab server.

Runs in the browser
Data is not sent to the server
Counts calendar days between dates
Can include or exclude the end date
Shows business and weekend days
Shows weeks and remaining days
Useful for contracts, timelines, and deadlines
No registration required

Frequently Asked Questions

How do I count days between two dates?

Enter the start and end dates. The calculator shows the difference in calendar days and additional metrics.

Is the end date included?

You can choose. In the default mode the end date is excluded, so May 1 to May 2 is 1 day. With "Include both dates" the result is 2 days.

Can I count business days only?

Yes. Choose "Business days only". Business days are Monday through Friday without public holidays.

Can I count weekend days?

Yes. Choose "Weekends only" to count Saturdays and Sundays in the selected period.

What if the dates are the same?

Without including the end date the result is 0 days. If both dates are included, the result is 1 day.

Can the end date be earlier than the start date?

By default the calculator shows an error. You can enable a negative interval mode if needed.

Are public holidays included?

In the first version, business days are Monday through Friday without holidays. A production calendar can be added separately.

Is my data sent to the server?

No. All calculations run locally in your browser and are not sent to the UtiLab server.

Is this suitable for contracts and deadlines?

Yes, it is handy for preliminary deadline and contract-period checks. For legally significant terms, verify the rules for your case.

Do I need to register?

No. The tool works immediately without registration.

More about this tool

Runs in the browser
Data is not sent to the server
Counts calendar days between dates
Can include or exclude the end date
Shows business and weekend days
Shows weeks and remaining days
Useful for contracts, timelines, and deadlines
No registration required

Frequently Asked Questions

How do I count days between two dates?

Enter the start and end dates. The calculator shows the difference in calendar days and additional metrics.

Is the end date included?

You can choose. In the default mode the end date is excluded, so May 1 to May 2 is 1 day. With "Include both dates" the result is 2 days.

Can I count business days only?

Yes. Choose "Business days only". Business days are Monday through Friday without public holidays.

Can I count weekend days?

Yes. Choose "Weekends only" to count Saturdays and Sundays in the selected period.

What if the dates are the same?

Without including the end date the result is 0 days. If both dates are included, the result is 1 day.

Can the end date be earlier than the start date?

By default the calculator shows an error. You can enable a negative interval mode if needed.

Are public holidays included?

In the first version, business days are Monday through Friday without holidays. A production calendar can be added separately.

Is my data sent to the server?

No. All calculations run locally in your browser and are not sent to the UtiLab server.

Is this suitable for contracts and deadlines?

Yes, it is handy for preliminary deadline and contract-period checks. For legally significant terms, verify the rules for your case.

Do I need to register?

No. The tool works immediately without registration.