https://en.m.wikipedia.org/wiki/Brouwerij_’t_IJ
Delays out of DC due to paperwork/maintenance and then a ground stop due to lightning, put us into AMS with just enough time to make our connection if only United hadn’t preemptively off-boarded us. New routing via Frankfurt with time to kill in both Schiphol and Frankfurt before reaching Dubrovnik @ 4 hours off schedule. Not bad, all things considered since we’d already written off today as travel/time adjustment/decompression.