Why not just make up a holiday/festival for the game? I could definitely see a New Years themed festival. 
But here's another thing to look at, bungie is centered in the U.S., specifically in Seattle. 
Also, why would they put in a Muslim themed holiday in a game that has no religious background? 
There will not be a Christmas themed festival.
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	Chinese people offended with the New Year everyone else uses.... Jews like me have a different new year too but I do Jan 1st and the Jew one too
 
										 
					 
		    