Multiply timestring and float

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Hi
How to multiply timestring and float in ojbective c.

for e.g. timestring is 2:00 hour and float value is 1.5. How to multiply these two values and get the answer like this 3:00hous

Thanks in advance.

Posted 10-Jan-14 8:47am

lisalis

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OriginalGriff · Accepted Answer · 2014-01-10T09:06:00

Convert the time string to minutes as a float: 2 * 60 + 0 == 120.0
Multiply by the original float: 120.0 * 1.5 == 180.0
Convert this to an integer: 180.0 == 180
Take the modulus base 60 (this is the minutes): 180 % 60 == 0
Integer divide the value by 60 (this is the hours): 180 / 60 == 3
Convert the two values back to a string, remembering the leading zeros on the minutes and the colon.