How accurate is the Hijri to Gregorian conversion?

The calculator uses the Umm al-Qura astronomical algorithm, which is accurate to within ±1 day. For religious observances, official announcements from the UAE Moon Sighting Committee take precedence over calculated dates.

Can I calculate dates for MOHRE labor contracts?

Yes. Enter your contract start date and add the contract duration (typically 2 or 3 years for limited contracts). The calculator will provide the exact end date, helping you plan renewals or gratuity calculations.

Does the calculator account for leap years?

Absolutely. The algorithm automatically adjusts for Gregorian leap years (every 4 years, except century years not divisible by 400) and Hijri leap years (which follow a 30-year cycle).

How do I calculate the gap between two important events?

Enter both dates in the "Date Difference" mode. The calculator displays the result in days, weeks, months, and years—useful for tracking milestones or planning anniversary celebrations.

Is this tool suitable for business scheduling in Dubai?

Yes. The calculator handles UAE-specific requirements including the Friday-Saturday weekend. For detailed time-based calculations or hourly tracking , additional tools are available.

Can I use this for passport or Emirates ID expiry tracking?

Definitely. Enter your document issue date, add the validity period (typically 5 or 10 years for passports), and note the expiry date. Set reminders at least 6 months before expiry for passport renewals.

What if I need to calculate someone's exact age?

While this calculator handles date differences, for precise age computations including years, months, and days, a dedicated age tool provides more detailed breakdowns.

Does the calculator work for dates far in the past or future?

The calculator handles dates from 1900 to 2100 with full accuracy. For historical research or long-term projections beyond this range, results may require manual verification.

Calendar Calculator UAE – Free Date Planner & Counter

What Does This Calendar Calculator Do?

The calendar calculator is a versatile date computation tool designed specifically for users in the UAE. It handles multiple calendar systems and provides instant calculations for personal and professional planning.

Key Benefits:

Multi-Calendar Support: Switch between Gregorian, Hijri (Islamic), and other calendar formats common in the UAE
Flexible Date Math: Add or subtract days, weeks, months, or years from any starting date
Duration Counter: Find the exact number of days, weeks, or months between two dates
UAE Public Holidays: Automatically accounts for UAE national holidays and weekends (Friday-Saturday)

This calculator uses verified algorithms consistent with international date standards. The Hijri conversion follows the Umm al-Qura calendar used officially in Saudi Arabia and widely referenced across the GCC region.

For more specialized calculations, explore the Love & Entertainment section featuring tools for birthdays, anniversaries, and time management.

ADVANCED CALENDAR CALCULATOR WIDGET For WordPress Elementor HTML Widget Features: Gregorian/Hijri conversion, date arithmetic, duration calculator, UAE holidays DATE DIFFERENCE PANEL ADD/SUBTRACT PANEL HIJRI CONVERTER PANEL ℹ️ UAE HOLIDAYS PANEL 🇦🇪

Calculation Methodology

The calculator performs date arithmetic using the Julian Day Number system—a continuous count of days since January 1, 4713 BCE. This provides a universal reference point for converting between different calendar systems. For Date Difference Calculations: The formula calculates the absolute difference between two dates: Days Between = Julian Day Number (End Date) − Julian Day Number (Start Date)For Adding/Subtracting Periods: When you add 3 months to a date, the calculator:

Extracts the year, month, and day components
Adds 3 to the month value
Adjusts for year rollover if necessary (e.g., November + 3 months = February next year)
Handles month-end variations (adding 1 month to January 31 returns February 28 or 29)

Hijri-Gregorian Conversion

The Islamic calendar is lunar-based with 354 or 355 days per year, making it approximately 11 days shorter than the Gregorian year. The calculator uses astronomical calculations based on moon sighting conventions. Important Note: Hijri dates may vary by ±1 day depending on local moon sighting. For official religious dates, always confirm with UAE General Authority of Islamic Affairs. If you need to calculate the exact number of days for a specific project or measure time spans more precisely, these specialized tools offer additional features.

Example 1: UAE Employment Visa Validity

Scenario: Ahmed, a project manager in DIFC, received his new employment visa stamped on March 15, 2025. His visa is valid for . He wants to know the exact expiry date and set a reminder 90 days before. Calculation:

Start Date: March 15, 2025
Add: 2 years
Expiry Date: March 15, 2027

90-Day Reminder:

Expiry Date: March 15, 2027
Subtract: 90 days
Reminder Date: December 15, 2026

Ahmed should begin his visa renewal process no later than December 15, 2026, to ensure adequate processing time with MOHRE.

Example 2: Tenancy Contract Duration

Scenario: Fatima signed a rental agreement for an apartment in Dubai Marina on June 1, 2024. Her landlord claims the contract ends on May 31, 2025. She wants to verify the total rental period. Calculation:

Start Date: June 1, 2024
End Date: May 31, 2025
Total Days: 365 days (exactly 1 year)

The landlord is correct. Per RERA regulations, Fatima must provide 90 days' notice if she plans to vacate—meaning she should notify her landlord by March 2, 2025. Use our date span calculator to verify rental periods and avoid disputes.

Example 3: Ramadan Planning with Hijri Calendar

Scenario: Yusuf's company in Abu Dhabi needs to plan reduced working hours for Ramadan 2025. He needs to convert the expected Hijri dates to Gregorian for scheduling. Information:

Ramadan 1446 begins: approximately 1 Ramadan 1446 AH
Expected Gregorian equivalent: March 1, 2025
Ramadan duration: 29-30 days

Calculation:

Start: 1 Ramadan 1446 ≈ March 1, 2025
Add: 30 days
Eid al-Fitr expected: March 30-31, 2025

Yusuf should plan for reduced hours from approximately March 1 through March 30, 2025, with potential Eid holidays immediately following. For precise age or birthday calculations in both calendars, additional tools are available.

UAE Weekend Structure

The UAE follows a Friday-Saturday weekend for government and many private sector organizations. When calculating business days, remember that Sunday through Thursday are standard working days.

Public Holiday Considerations

UAE observes several public holidays that affect date calculations:

Fixed dates: New Year's Day (January 1), UAE National Day (December 2-3)
Islamic holidays (variable): Eid al-Fitr, Eid al-Adha, Islamic New Year, Prophet's Birthday

Islamic holidays shift approximately 11 days earlier each Gregorian year. Always verify current year dates with official UAE government announcements.

Common Mistakes to Avoid

Inclusive vs. Exclusive counting: "From June 1 to June 30" is 30 days if you count both endpoints, but 29 days if you exclude the start date
Leap year oversight: February 2024 had 29 days; February 2025 has 28 days
Time zone confusion: UAE follows Gulf Standard Time (GMT+4) with no daylight saving

Expert Tips

When scheduling contract renewals or visa appointments, add a 2-week buffer to account for processing delays. Government services in the UAE, while efficient, may experience higher volumes during certain periods. For tracking monthly intervals or weekly periods, use the appropriate specialized calculators for greater accuracy.

Start Planning Your Dates

Whether you're managing visa renewals in Sharjah, planning a wedding in Yas Island, or tracking business milestones across the Emirates, this calendar calculator simplifies your date computations. Enter your dates above to get started. For official documentation or legal matters, verify results with the relevant UAE authorities such as MOHRE for employment matters or ICA for identity services. All calculations are performed locally in your browser—your data stays private and secure.

Related Date & Time Tools

Date Arithmetic Tool – Add or subtract specific periods from any date
Interval Calculator – Measure exact time spans between events
Annual Duration Tool – Calculate full years between dates
Day Counter – Simple daily calculations
Birth Date Finder – Reverse-calculate birthdates from age
Time Zone Converter – Schedule across international time zones

Calendar Calculator UAE – Free Date Planner & Event Counter