Dates for Hajj 2018

When is Hajj 2018?

The dates of Hajj for 2018 (1439) are as follows,

Note: The dates above have not yet been confirmed by the authorities in Saudi Arabia. These dates are based on calculations – please check closer to time for confirmed dates.

[ pdf | <1 MB | 2c10529be98ac1cdc8c8a7331476aefe | 8eebdc042450a452df998c5da10e67d8601b6d88 ]

So you may be wondering how the dates above were arrived at. Good question. First we can calculate the moon phases in August, which is when the month of Dhul Hijjah will start this year inshAllah,As we can see the new moon is expected on the Saturday, 11-Aug-2018 at 12:58 (in Makkah). But will it be visible on this day? This is where we have to calculate the moon crescent visibility curves to verify. Moon crescent visibility curves for three days are as follows,

As can be seen from these curves,

  • The moon will not be visible (in Makkah) on Saturday, 11-Aug-2018
  • The moon will be visible (in Makkah) by the naked eye on Sunday, 12-Aug-2018. This means that the first day of Dhul Hijjah will be Monday, 13-Aug-2018
  • So the first day of Hajj (the 8th of Dhul Hijjah) will be on Monday, 20-Aug-2018 inshAllah


  1. “Accurate Times”, International Astronomical Center (IAC)

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