PRACTICAL GUIDE

Hijri Conversion and Local Moon-Sighting Dates

Know what a calculated calendar conversion can tell you, and what still needs a local announcement.

Read the selected method

Different Hijri calendar implementations can assign a Gregorian day to different Hijri dates. The converter names the browser method it uses. Keep that method beside a copied result; a date without its calendar convention is harder to compare with a mosque timetable or another converter.

A lunar year is shorter

Hijri months follow a lunar-year structure, so the same named month moves through the Gregorian seasons over time. There is no permanent Gregorian date for the start of Ramadan. Enter the actual date or year you need rather than reusing a previous year’s calendar.

A conversion is not a sighting announcement

A calculated date does not establish that a crescent was observed locally. Communities and authorities can follow different announcement practices. Use the converter to compare dates and plan provisionally, then follow the relevant local announcement for religious observance.

Keep calendar dates and prayer times separate

A Hijri date conversion does not calculate Fajr or Maghrib. Those depend on a place, date and prayer method. Use the Ramadan calendar for a city-specific sehri/iftar timetable, and check both its calculated date range and the method before printing or sharing it.

Put it into practice