Singapore Airlines operates the two longest scheduled non-stop flights on record: Newark to Singapore at 18 hr 50 min (67.8 ks) and Los Angeles to Singapore at 18 hr 5 min (65.1 ks).
•
Those include most lectures, stage plays, operas, stand-alone ballets, and in classical music most works in sonata form (the longest such work in the classical repertory is the Third Symphony of Gustav Mahler at roughly 93 minutes (5.58 ks), although some compositions in sonata form can be shorter than 1 ks in duration.