Date & Time Calculators

Islamic Hijri Calendar

Islamic (Hijri) calendar with Gregorian counterparts, regional convention offsets, ±1/±2 day adjustment, and major observances such as Ramadan and Eid.

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Calculated Hijri dates use a tabular (Kuwaiti) algorithm plus optional regional day adjustments. Official moon-sighting announcements in your country may differ by one or two days — always confirm Ramadan and Eid with your local mosque or authority.

Hijri settings

Match a regional convention, then fine-tune with an extra day shift if your local moon-sighting differs.

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Introduction

The Islamic Hijri Calendar on ExploreCalcTools is a free, mobile-friendly calendar tool for planning, education, and Islamic date awareness.

Islamic (Hijri) calendar with Gregorian counterparts, regional convention offsets, ±1/±2 day adjustment, and major observances such as Ramadan and Eid.

Related tools

Educational calendar tool — Hijri dates are calculated estimates and may differ from official moon-sighting announcements.

How It Works

  1. Open the interactive calendar or today board
  2. Navigate months or choose a Hijri convention if shown
  3. Select a date or run date tools (difference / add / subtract)
  4. Confirm critical religious dates with your local authority

Formula Used

Tabular Kuwaiti Hijri algorithm + regional day adjustment; moon-sighting may differ

Examples

Formula / method: Tabular Kuwaiti Hijri algorithm + regional day adjustment; moon-sighting may differ

Frequently Asked Questions

Are Hijri dates exact for every country?

No. This tool uses a calculated tabular calendar plus optional regional day adjustments. Official local moon-sighting (or government announcements) can differ by one or two days — especially for Ramadan and Eid.

What does day adjustment mean?

If your mosque or country starts a Hijri month one day earlier or later than the calculated calendar, choose +1/−1 (or +2/−2) so the grid matches local practice.

Which observances are shown?

Commonly listed dates include Islamic New Year, Ashura, Mawlid (where observed), Isra/Miʻraj, Ramadan start, estimated Laylat al-Qadr night, Eid al-Fitr, Arafah, and Eid al-Adha. Local practice varies.