Matemáticas

Date Duration Calculator

Calculate days, weeks, and months between two dates — with working-day counting, UAE weekend awareness, countdown timers, and date arithmetic.

No sign-upFree forever5 languagesInstant results

UAE weekend awareLeap year accuratePublic holiday exclusionUpdated July 2026

Weekend:

Start Date

End Date

Include end date

Select start and end dates to calculate duration.

Ejemplos prácticos

UAE gratuity: service period from joining to resignation

An employee joined on 15 March 2021 and resigned on 30 June 2026. Enter those dates in the Duration tab to get 5 years, 3 months, and 15 days — the exact service period used in UAE gratuity calculations under the MOHRE formula.

Project deadline: 45 working days from contract signing

A construction contract signed on 1 July 2026 requires delivery within 45 UAE working days. Use the Add Days tab with 'Working Days' mode and UAE weekend setting — the calculator returns 7 September 2026, accounting for Fridays and Saturdays.

Countdown to UAE National Day

Use the Countdown tab with target date 2 December 2026 to see exactly how many days until UAE National Day. The result shows both total days and breaks it into weeks and remaining days.

Preguntas frecuentes

~4 min read

What is the difference between calendar days and working days?▾

Calendar days count every day including weekends and public holidays. Working days count only days when businesses operate — in the UAE that is Monday to Friday, excluding Friday and Saturday. A 30-calendar-day period typically contains about 21 UAE working days.

Why does the UAE have a different weekend to other countries?▾

The UAE changed its official weekend from Thursday-Friday to Friday-Saturday in January 2022, aligning with the global work week while retaining Friday for Jumu'ah prayers. The public sector moved to a 4.5-day week (Monday to Friday noon). This calculator uses Friday and Saturday as the UAE weekend.

How are working days calculated for UAE gratuity?▾

UAE gratuity under the MOHRE labour law is based on total service years, not working days. However, notice periods are often stated in working days. The calculator helps you find the exact end date of a notice period so you can compute the correct last working day.

Does the calculator account for public holidays?▾

The calculator excludes approximate UAE public holidays (Eid Al Fitr, Eid Al Adha, National Day, Islamic New Year, Prophet's Birthday) when computing working days in UAE mode with the exclude-holidays toggle. Note that Islamic holiday dates shift each year — use official MOHRE announcements for precise holiday dates.

How do I find the date 90 days from today?▾

Use the Add Days tab. Set today as the start date, enter 90 in the days field, and select Calendar Days mode. The result shows the exact date 90 calendar days from now. For working days only, switch to Working Days mode.

Can I calculate months between two dates?▾

Yes. The Duration tab shows the breakdown as years, months, weeks, and days. For example, from 1 January 2025 to 15 June 2026 is 1 year, 5 months, and 14 days. The total months field shows 17 (the full month count including years converted to months).

What does 'include end date' mean?▾

By default, the calculator counts from the start date up to but not including the end date (exclusive). Enabling 'include end date' adds one extra day — useful when counting the total number of days an event runs, including both the first and last day.

Is the calculator accurate for leap years?▾

Yes. The date arithmetic uses JavaScript's native Date object, which handles leap years correctly. A period spanning February 2024 (a leap year) will correctly count 29 days for February rather than 28.

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Public holiday dates for Islamic observances (Eid, Islamic New Year) are approximate and shift annually. Verify exact dates with official UAE government announcements for legal or contractual purposes.