Bolongo
Herr Doktor
This.Otherwise you simply end a fight, the wounded ask the cleric for healing (as has been the time honoured tradition these past decades), he rolls, and keeps on going until people feel they are sufficiently healed. Then you work out how many short rests have gone by (if relevant, which is almost never), by the simple function of dividing the number of healing words used by 2.
Exactly what I do. And so far, in 12 levels of play, the passage of "actual time" has never been relevant.