Time adding

Add and write the result again as hours, minutes, seconds:

2hodiny45min15s + 1h20m50s =

Correct result:

h =  4
m =  6
s =  5

Solution:

t1=2⋅ 3600+45⋅ 60+15=9915 t2=1⋅ 3600+20⋅ 60+50=4850 t=t1+t2=9915+4850=14765 h1=t/3600=14765/3600=2953720≐4.1014 h=⌊h1⌋=⌊4.1014⌋=4
t3=t−3600⋅ h=14765−3600⋅ 4=365 m1=t3/60=365/60=7312≐6.0833 m=⌊m1⌋=⌊6.0833⌋=6
s=t3−60⋅ m=365−60⋅ 6=5s=t_{3} - 60 \cdot \ m=365 - 60 \cdot \ 6=5

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