Convert Gregorian dates to Hijri and Hijri dates to Gregorian using an embedded Umm al-Qura calendar, an Islamic civil option, multilingual output and local day adjustment.
Umm al-Qura · Islamic civil · Arabic and Asian language output · nearby-date table
The result includes localized and numeric dates, weekday, month length, year length, day of year and a nearby-date table.
—
| Gregorian date | Hijri date | Localized Hijri date | Weekday |
|---|
The converter stores the complete 29-day and 30-day month sequence for 1300–1600 AH. Gregorian and Hijri dates are mapped through a cumulative day index, so both directions use the same deterministic calendar data.
The optional civil calendar uses a fixed arithmetic cycle. It is predictable across long historical and future ranges but can differ from published Umm al-Qura or locally observed dates.
| Calendar | Method | Best use | Important limitation |
|---|---|---|---|
| Umm al-Qura | Published Saudi month sequence | Saudi civil dates and documents that specify Umm al-Qura | Embedded range is 1300–1600 AH; observance can still follow official sighting decisions |
| Islamic civil | Fixed 30-year arithmetic cycle | Repeatable historical or future date arithmetic | May differ from observed and regional calendars |
A published calendar creates a stable civil date sequence. Religious authorities may separately announce Ramadan, Eid or other observances after reviewing crescent-sighting evidence.
Different countries and communities may begin a Hijri month on different Gregorian dates. The ±2-day control is transparent and appears in the report rather than silently changing the result.
Each entered day is processed at a neutral UTC boundary. Device time zone changes therefore do not move the date backward or forward.
Month names, weekdays and numerals can be displayed for Arabic, Indonesian, Urdu, Malay, Turkish, French, Persian or English readers while the underlying numeric date remains visible.
Select Gregorian to Hijri or Hijri to Gregorian, then choose Umm al-Qura or the Islamic civil calendar.
Use the Gregorian date picker or enter a Hijri day, month and year within the supported range.
Choose the output language, numeral style, local day adjustment and nearby-date table size.
Select Convert Date to view the converted date, weekday, month length, year length and calendar details.
Copy the report, download TXT or CSV, print the result, or use the converted date as the next input.
Umm al-Qura results are exact for the embedded month table. Civil results are exact for the arithmetic method. Neither mode predicts a future local moon-sighting announcement.
The page-specific engine does not upload entered dates or create server-side files. TXT and CSV exports are generated in the browser. Shared site analytics may load, but form values are not intentionally sent to them.
For contracts, court deadlines, government filings, Ramadan, Hajj or Eid, verify the final date with the official calendar and competent authority that governs the event.
Check that the source date is complete, the Hijri day exists in the chosen month, and the year fits the selected calendar. Switch to Islamic civil for dates outside 1300–1600 AH.
The Saudi Press Agency describes Umm al-Qura as the official calendar adopted in the Kingdom and explains its relationship to the lunar cycle.
Unicode locale standards identify the calendar as islamic-umalqura, enabling consistent multilingual calendar naming and formatting.
The modern internationalization specification documents KACST-calculated Umm al-Qura months from 1300 through 1600 AH.
Saudi official announcements show that crescent sighting can still be requested and confirmed for religious months alongside the calendar date.
It converts Gregorian dates to Hijri dates and Hijri dates to Gregorian dates using either the Umm al-Qura calendar or the arithmetic Islamic civil calendar.
Umm al-Qura is the official calendar used in Saudi Arabia. It is a lunar Hijri calendar whose published month sequence is used for civil and administrative dates.
The embedded Umm al-Qura table covers Hijri years 1300 through 1600 AH. Dates outside that range should be converted with the Islamic civil option.
Yes. Choose either direction and the engine validates the entered date before producing the reverse-calendar result.
It is a fixed arithmetic Hijri calendar with 29-day and 30-day months arranged by a repeating 30-year leap-year cycle. It is useful when a predictable tabular result is required.
Hijri dates may differ because of local crescent-sighting decisions, regional calendars, observation methods, time zones and the selected calculation system.
It shifts the Hijri interpretation by up to two days without changing the underlying calendar table, helping you compare a published local date with the default result.
Yes. Gregorian-to-Hijri adds the selected adjustment before reading the Hijri date, while Hijri-to-Gregorian applies the inverse shift so round-trip conversion remains consistent.
Not always. Umm al-Qura is a published calendar, while religious authorities may confirm some observances through local or official crescent-sighting procedures.
Yes for planning and date comparison, but the start and end of Ramadan may be officially announced according to local religious authority and moon sighting.
It can provide calendar dates, but final Eid observance dates should be confirmed through the competent authority in your country or community.
No. It does not infer a religious calendar from location. Select the calendar method and any local day adjustment that matches the source you are comparing.
The interface can format results in English, Arabic, Indonesian, Urdu, Malay, Turkish, French and Persian when supported by the browser.
Yes. Choose local numerals to use the selected language’s customary digits, or choose Western numerals for 0–9.
Month names and transliterations vary by language and region. The numeric Hijri date is shown alongside the localized long date to reduce ambiguity.
The calculator checks the actual month length for the selected calendar. A day that does not exist in that month is rejected with a clear correction message.
No. In the supported Hijri calendars, months contain 29 or 30 days. The exact Umm al-Qura sequence is taken from the embedded calendar table.
A Hijri year contains 354 or 355 days. The result panel shows the exact length for the selected year and calendar.
It is the sequential day number within the Hijri year, starting with 1 Muharram as day 1.
The converter treats entries as calendar dates at a neutral UTC day boundary so the result does not change merely because the device is in another time zone.
The other converter may use observational, civil, tabular, Saudi sighting or Umm al-Qura data, or it may apply a regional one-day adjustment.
Yes with the Islamic civil option. The Umm al-Qura table is deliberately limited to its documented 1300–1600 AH range.
Yes with the Islamic civil option. Future official Umm al-Qura month data beyond the embedded range is not guessed.
No. The conversion runs in the browser from embedded calendar data and arithmetic formulas after the page has loaded.
No page-specific request sends the entered dates to a server. Reset clears the current result, and the tool does not create a date-history database.
Yes. You can download a text conversion report and a CSV table of nearby dates. Filenames begin with correctioncopy.com_.
Yes. Use Print / PDF to print the result or save it as a PDF through the browser’s print dialog.
It switches the conversion direction and places the converted date into the appropriate input fields while preserving the calendar and adjustment settings.
Use it as a calculation aid only. Confirm legally significant dates against the governing document, official calendar and responsible authority.
No. The tool performs calendar conversion and does not decide religious observance, testimony, moon sighting or jurisprudential questions.
The core embedded Umm al-Qura and civil calculations work in current major browsers with JavaScript enabled. Localized month names depend on the browser’s available language data.
Check that all date fields are complete, the Gregorian date is valid, the Hijri day exists in the selected month and the year is inside the selected calendar’s supported range.
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