We used to work in +6 and -5 (or -4) timezone. Given no overlapping work hours, it was pretty difficult to do it. So one person from either team volunteered and proxy the team during odd hours standup (and we rotated each week which side will join at odd hours). However, later we've converted to collocated teams which is working greatly.
There is still someone (now specifically product owners) who bridges between both sides but both team now feel better sense of ownership as they their separate responsibilities in same product.
There is still someone (now specifically product owners) who bridges between both sides but both team now feel better sense of ownership as they their separate responsibilities in same product.