be locally created - NO (global handle index)
viewed - YES (it's a local thing)
destroyed - NO (global handle index aka if it wil not desync imediately so it will desync on new created object like unit trigger etc.)
Last time I checked timerdialogs used the usual handle indexes for timerdialogs, dunno if that has changed but if it did, I think you would at least have desyncs if you had actions that depended on handle comparisons.