Women are encouraged to stone the الجمرات at times when the crowds are less dense, to ensure their safety and ease. النبي (صلى الله عليه وسلم) set the precedent for this by sending the weak members of his family — including women, children, and the elderly — ahead from مزدلفة to منى during the night, allowing them to stone Jamrat al-Aqabah before the main crowd arrived at dawn.
الشيخ ابن باز stated that women may stone at any جائز time, and it is better for them to choose times with less crowding. For the day of Eid (10th ذو الحجة), they may stone Jamrat al-Aqabah before dawn if they departed مزدلفة early. For the days of التشريق (11th, 12th, and 13th), they may stone after Zawal (noon) or at night, choosing whichever time is less crowded and safer for them.
الشيخ ابن عثيمين permitted stoning at night for women and weak الحجاج, stating that the night of the following day extends until the Fajr of the next day. He encouraged women to avoid peak stoning times when the crowds are most dangerous. He also affirmed that if a woman genuinely fears for her safety or is unable to stone due to health reasons, she may appoint a proxy to stone on her behalf. The safety of the الحاج takes precedence over performing the act personally.