Overtime timing?

[Apaddle]

Let me preface this by saying I haven't refereed in two years. I was at a Jr. High Boys game tonight, of course went to overtime, the 2 ref's on the court told the timer to put 2 minutes on the clock, they play 6 minute quarters. I was told I was wrong, but as I remember, unless something has changed, is it not half of a normal quarter for all non-varsity games? Thanks.