Countdown - Add remaining days hours to hours field

On my Countdown element I would like to have only 3 fields: hours, minutes, and, seconds.

If the date set is less than a day (max 23 hours + minutes + seconds) everything works normally BUT if the date is set for a longer period of time (eg. 3 days + 23 hours + minutes + seconds) I would like to have the corresponding amount of hours that belongs to the remaining days be added to the hours field (eg. (72 + 23 hours) = 95 hours + minutes + seconds).

Does anyone knows how could I achieve this?