Маршрут троллейбуса 21 на карте Афин

05:00 - 22:00 каждые 10 мин
22:20 - 23:30 каждые 25 мин

05:00 - 23:30 каждые 17 мин

05:00, 05:30, 06:00, 06:30, 07:00, 07:20, 07:40, 08:00, 08:20, 08:40, 09:05, 09:25, 09:45, 10:05, 10:20, 10:40, 11:05, 11:30, 11:50, 12:10, 12:35, 13:00, 13:20, 13:45, 14:10, 14:30, 14:55, 15:20, 15:40, 16:05, 16:30, 16:50, 17:15, 17:40, 18:05, 18:25, 18:45, 19:10, 19:35, 20:00, 20:25, 20:45, 21:05, 21:30, 22:00, 22:30, 23:00, 23:30