When is hajj 2017? As per the estimates, Hajj 2017 will fall between 30 August, 2017 Wednesday and 03 September, 2017 Sunday, insha-Allaah. There is a small probability of one day error.
The Hajj takes place from the 8th to the 12th of Zul-Hijjah which is the last month of the Islamic lunar / Hijri calendar.
The Islamic or Hijri Calendar is a lunar calendar based on moon sightings. The actual advent of each month depends upon the physical sighting of the new moon. The corresponding Gregorian dates are estimates based upon astronomical calculations, endorsed by the Fiqh Council of North America. The Gregorian dates for Hajj change from year to year.
The Islamic day begins at sunset.