Days to Offer Sacrifice by The Permanent Committee

بسم اللہ الرحمن الرحیم

Question: I see some people slaughter their Ud-hiyah (sacrificial animal offered by non-pilgrims) at noon, or at the time of ‘Asr (afternoon), and others at anytime. Is all this valid?
Answer: It is permissible for a pilgrim to slaughter during the day or the night, whether it is Hady (sacrificial animal offered by pilgrims) of Tamattu‘ (`Umrah during the months of Hajj followed by Hajj in the same year with a break in between), Qiran (combining Hajj and `Umrah without a break in between) or Ud-hiyah. The days of sacrifice are: the Day of ‘Eid-ul-Adha (the Festival of the Sacrifice), and the three days following it which end with the sunset of the thirteenth day (of Dhul-Hijjah), after ‘Eid.
May Allah grant us success! May peace and blessings be upon our Prophet Muhammad, his family, and Companions!

Source: Alifta.com