If the {'arlogh Qoylu'pu'} idiom isn't used to specify fractions of the hour, it might be the case that you don't bother with it in the first place if you know you need an answer more precise than an hour. So the {ghelwI'} in this dialogue should probably have just started with {rep yIper, lagh!} if they knew they needed the minutes too.

Except we're told that rep yIper and 'arlogh Qoylu'pu' are generally used in different contexts. Unless non-military or interplanetary contexts mean you don't care about precision, rep yIper is not simply a more precise version of 'arlogh Qoylu'pu', and you wouldn't simply substitute them.

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SuStel
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