Is there a way to force the Time Spent (Actual) display to only show hours?

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<o:p> We </o:p>  often update stories on a daily basis and find it rather annoying when Jazz decides to show time in days + hours format.  When we click on the field to change the value it gets even worse because then it switches units to days which is even less granular.

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<o:p>   </o:p> Example:

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<o:p>   </o:p> 2 days 7 hours displayed

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Click on field <o:p> </o:p>

2.93 days displayed <o:p> </o:p>