Hide All day text in List display

Problem/Motivation

I am using this module to register and display working time. (Not start and end time)
In the List display, it shows All Day. This becomes confusing because sometimes the user does not work at all and sometimes only part of the day.
So I want to hide this. I do not find anything in the settings. I could solve it by the translation (I am using Swedish) but I do not find it there. 'All Day' is translated to 'Heldag' but I can not find it in the configuration for the translation. I do not find any translation file either.

It is a great module and the 'Working Diary' is working very well so I hope someone could help me to correct this so the app gets even better.