Your safest bet is to go (looking at this years calendar) for a week, 23rd-31st/1st..
I have had interviews as early as Jan 3rd.
Just don't go for too long
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Missing a couple of days with the fam versus matching in ortho (because you missed that one interview..) is something to consider.. plus, you can always visit the family after february or after the match..
Something to consider
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