Mina

Mina is a small valley near the Grand Mosque that includes the Jamarat and the Mosque of Al-Khayf.
Mina welcomes the pilgrims at the beginning of their journey, from the eighth day of Dhu al-Hijjah until the end of Hajj including the Day of Sacrifice and the days of Tashreeq.
The Prophet Muhammad, peace be upon him, prayed Dhuhr on the Day of Tarwiyah in Mina, so it is Sunnah for the pilgrim to leave Mecca on the Day of Tarwiyah so that they arrive at Mina by Dhuhr time or before to pray Dhuhr in Mina.