Log time -- 4 days per day?

I went to log some time and put 4 in the "work done" field. Because there is only one date that can be associated with an entry (not a date range), one would assume that aha would take that as 4 hours for that day, not 4 days.

Extra effort -- have to remove my hand from the numeric keypad to enter the "h" in 4h, which is irksome.

Make the default time unit for the "log time" pop-up be hours rather than days. It can't really be much more than 1 day per day now can it?

I understand that the definition of a "day" is flexible so if one puts in a lot of overtime when a day is defined as 6h (as it is for us), one might work 2 days in 1 day but in such rare cases one could either add the "d" suffix (as in "2d") or enter the total number of hours (e.g., "12"). Further, anything other than an exact number of days (6, 12, or 18 hours in my case) would most likely be entered as hours (10 hours) rather than a fraction of a day (1.6666 days).

So, for a default, hours makes sense; days does not.