How do you add degrees, minutes and seconds?

It isn't easy.  You just have to go slowly and keep your wits about you.-- Add the seconds.  If the sum is more than 60, then take 60 off, write what's left as seconds, and carry 1 minute next door to the minutes.-- Add the minutes. If the sum is more than 60, then take 60 off, write what's left as minutes, and carry 1 degree next door to the degrees.-- Add the degrees.You can use exactly the same procedure to add hours, minutes, and seconds of time.