What exactly do you mean by recovery time? The time you should wait until the next training? Or the time you've spent without moving during an activity?
If you mean the first case, then this feature is not supported by Instinct, as far as I know, I believe you need a watch supporting the VO₂Max calculations, and Instinct does not have that.
On Instinct, you only get some info about the Recovery Heart Rate, when you pause (or stop) an activity (the screen pops up 2 minutes after the stop). Once you save the activity, the recovery info is no more accessible. At least personally I do not know about any way to restore it, and it is not availabe in the data sent to Garmin Connect, or in the History on the watch. You can read up about it here: Recovery Heart Rate Feature on Garmin Watches
In the second case, you can get the resting time by deducing the Moving Time from the Total Time of an activity.
If Edge 830 supports it, it may work on Edge, but not on Instinct, since it is not equipped with the VO₂Max (training effect, lactic threshold, etc) algorithms.
