服務日期起始時間從 06:55 出發於 2026年9月8日預定出發顯示 21公車行程至預定觀察到TPDerby Bus Station (Bay 23)07:29—142Nether Heage, Gun Lane08:13—TPDerby Bus Station (Bay 23)08:42—TPDerby Bus Station (Bay 23)09:52—147Belper10:08—142Nether Heage, Gun Lane10:44—TPDerby Bus Station (Bay 23)10:52—TPDerby Bus Station (Bay 23)11:42—147Belper12:08—TPDerby Bus Station (Bay 23)12:42—142Nether Heage, Gun Lane12:44—TPDerby Bus Station (Bay 23)13:42—TPDerby Bus Station (Bay 23)14:44—142Belper, King Street (Stop B)14:44—147Belper14:49—TPDerby Bus Station (Bay 23)15:44—142Nether Heage, Gun Lane16:55—TPDerby Bus Station (Bay 23)17:22—TPDerby Bus Station (Bay 23)18:40—TPDerby Bus Station (Bay 23)19:18—TPDerby Bus Station (Bay 23)20:48—預定和觀察到的數值分開保存。當缺少特定站點的即時觀察時，BustimeFinder 不會捏造即時出發。