Substract two QStrings

Hi,
I´m trying to substract two hours.
QString 1 = "11:00";
QString 2 = "10:00";

I would like to save the result from (11:00 - 10:00) into another QString.

¿Does anyone know how could I do this?

Thanks for replying!

Code:

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QString str_1 = "11:00";
QString str_2 = "10:00";
QString result = str_1 + " - " + str_2;

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In case you want to calculate the time difference, see QTime::fromString().

Cheers,
_