so if it is three minutes to one that means it is
12:57
in 6 hours and 34 minutes will be
12:57 + 6= 6:57
if you add 34 (i didnt do it above to make it easier) to 57 you get 91.
because minutes dont go past 60 you have to subtract..
91 - 60 = 31 and because you only subtracted 60 once you only add one hour..
so your answer is 7:31
i hope this helps you !!!