The Hajj is during the known months, so whoever executes the Hajj in them
shall refrain from sexual contact, wickedness and arguing during the Hajj.

As the above words clearly indicate, God allowed Hajj to be observed any time within the known months. These are the four months which God called "Hurum" (9:36). However, the Muslims today have ignored God's merciful concession and have confined the Hajj to only the first few days of the month of Zhu Al-Hijjah!

For full details of how to observe Hajj according to the Quran, please go to the following page: Hajj, the Quranic way