Which Hijri calendar does this use?

The tool uses the 'islamic-umalqura' calendar built into your browser's Intl implementation — the same calendar used by Saudi Arabia for official dates.

Is the Persian (Jalali) conversion accurate?

Yes. It uses the native 'persian' calendar from Intl.DateTimeFormat, which is the official Jalali calendar used in Iran and Afghanistan.

Are my dates uploaded anywhere?

No. All conversions run locally in your browser using JavaScript's Intl API. No data leaves your device.

Why do some dates show '?' for day or year?

That happens only in very old browsers that don't yet support the islamic or persian calendars. Use a recent Chrome, Firefox, Safari or Edge for full support.

Can I see today's date in all three calendars?

Yes — click “Use today” and all three cards update to the current date.

Multi-Calendar Converter

Convert any Gregorian date to Hijri & Persian (Jalali) — instant, private.

100% private — no uploads Date & Time ToolsFree & unlimited Read tutorial

See how it works

Watch a quick simulation of this tool in action — no file needed.

How to use Multi-Calendar Converter

Follow these steps — everything happens instantly in your browser.

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Step 1. Pick a Gregorian date with the date picker, or click “Use today” to load the current date.
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Step 2. Three cards appear side by side: Gregorian, Hijri (Islamic, Umm al-Qura) and Persian (Jalali).
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Step 3. Each card shows the full date, day, month, year and weekday in that calendar.
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Step 4. Copy any result with one click — useful for religious, cultural or historical dates.