QUESTION:
What is the last time of a day for qurbani? Just before magrib is it valid?
ANSWER:
It begins from after Eid prayer and lasts till the 13th of thul Hijjah sunset.
Obtained from: https://www.assimalhakeem.net/what-is-the-last-time-of-a-day-for-qurbani-just-b4-magrib-its-valid/