Starttime of recorded tracks

When a track is recorded, the creation-time is saved at properties. In many cases the creation time is the same as the start-time. But there are cases where it is not.

When a track has been splitted, the second part has the same time-stamp as the first part.

When two tracks have been joined, the current date/time is used, and there is no way to see when the track really has started.

What I need is always the start-time, the creation-time has no relevance for me. The start-time may easily derived from the time-stamp of the firs track-point.

So please make it possible to see the start-time in the properties of the track, and also in the sorting. Currently, sorting is a mess after some splits or joins of tracks, when I only can use the creation-time.