I have experienced it again and again -- time having a particular expansiveness while travelling. And although I have experienced it a number of times, I still find it quite surprising when it happens. My "theory" of time and travel (not to be confused with "time travel") is that, when travelling, there is so much that is new and unfamiliar, you have no other option than to be in the moment. While at home, moments can pass without being aware of their passing. It is remarkably easy to miss moments and remarkably difficult to be in them for as long as they last.
I hope to experience yet again the expansiveness of time.