Well.. a friend needs some information about Kurban Khait.. Its a tradition in Uzbekistan.. and i cant seem to find anything that can help him only thing i found is when its celebrated ..

Please if anyone has knowledge about this, please let me know

Use our friend Google.

While the Uzbek name seems to mostly return lists of public holidays as you said, it does give us a good hint -- the English name for this thing is obviously "Feast of the Sacrifice".  So, we Google that instead.