How to print invalid QTime?

I want to do something like this

QTime time (25,0,0);
qDebug() << time.toString();

But that wi开发者_StackOverflow中文版ll be invalid QTime and outputs ""

Can it be done in some way other then converting QTime to seconds, seconds to string?

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QTime is time of day, and thus 25:0:0 is invalid. What you seem to want is not time-of-day, but a duration. Qt doesn't ship a QDuration class. It's quite simple though to roll your own (durations are much simpler than dates and times, no timezones etc.).