Choose the direction
Convert a Gregorian date to Hijri, or enter a Hijri date to find its Gregorian equivalent.
Islamic Date Converter
Convert Gregorian and Hijri Dates
Convert any past, present or future date between the Gregorian and Hijri calendars. Switch direction, choose a calculation convention and allow for local moon-sighting differences.
Convert a dateConvert Gregorian and Hijri dates in either direction
Choose the conversion direction, enter a date and compare common calculation conventions. The result includes the weekday and a clear reminder about local lunar confirmation.
How the Hijri date converter works
Select a convention
Compare Umm al-Qura and Islamic civil calculations, then use the day adjustment when local observation differs.
Confirm observances locally
Use calculated results for planning and verify Ramadan, Eid and other moon-dependent dates with a trusted local authority.
Crescent moons mark times for people
Quran 2:189 explains that the phases of the moon are means by which people determine time and pilgrimage.
Quran 2:189The Islamic year follows twelve lunar months
Quran 9:36 states that the number of months is twelve and identifies four of them as sacred.
Quran 9:36Look up Islamic dates for records and planning
Historical dates
Estimate the Hijri date connected with a family record, document or event from a previous year.
Future planning
Convert an expected Hijri date when organising travel, study, reminders or community activities.
Worship calendar
Place Ramadan, sacred months and Islamic events in a Gregorian schedule while keeping lunar dates flexible.
Family milestones
Record both calendar systems beside births, anniversaries and other personal dates.
Common questions about Hijri and Gregorian dates
What is an Islamic date converter?
An Islamic date converter changes a Gregorian date into an estimated Hijri date, or a Hijri date into its Gregorian equivalent, for historical lookup and future planning.
Can I convert dates from previous years?
Yes. Choose any supported Gregorian date from 1900 to 2100, or enter a Hijri date within the displayed range.
Can I convert a future Hijri date?
Yes. Switch to Hijri to Gregorian, enter the Hijri day, month and year, and choose the calculation convention.
Why can a Hijri date differ by one day?
Calculated calendars use conventions, while an observed lunar month can begin after local crescent sighting. The adjustment control lets you compare the likely neighbouring date.
What is the difference between Umm al-Qura and Islamic civil?
Umm al-Qura is a calendar convention associated with Saudi calendar calculations. The Islamic civil calendar uses a tabular lunar pattern. Neither replaces an authorised local moon-sighting announcement.
Should I use the result for Ramadan or Eid?
Use it for planning, then confirm the beginning of Ramadan, Eid and other moon-dependent observances with a trusted authority in your location.