Schedule XML/JSON: encode duration in schedule format
Encode duration in schedule format ([d:]HH:mm), for example 1:04:50 for an event that is one day, 4 hours and 50 minutes long and 02:00 for an event that is 2 hours and 0 minutes long.
Encode duration in schedule format ([d:]HH:mm), for example 1:04:50 for an event that is one day, 4 hours and 50 minutes long and 02:00 for an event that is 2 hours and 0 minutes long.