Rounding time in Objective C

I got the following code:

    int days = round(durationTimeInterval / D_DAY);
    int secondsLeft = durationTimeInterval - (days * D_DAY);    
    double hoursLeft = secondsLeft % D_HOUR;
    double hours = round(hoursLeft);

if seconds left is 10710 then dividing by D_HOUR give 开发者_开发知识库me 2,975 I then want to round that up to 3 hours... Am not sure how to do this? Please advise.

You could use the round function or ceil function:

ROUND
CEIL