When Tawaf-e-Qudum is performed?

When Tawaf-e-Qudum is performed?

طواف قدوم کب کیا جاتا ہے؟
Explanation

Tawaf al-Qudum should be performed by pilgrims the moment they enter the premises of Masjid al-Haram (the Grand Mosque) in Makkah, Saudi Arabia.