weekends. There is also a night bus service on Friday and Saturday nights from the city centre to selected parts of the city suburbs. The Netherlands National Rail National rail operator NS runs an hourly overnight Intercity service between the major cities in the Randstad region between 1.00 am and 5.00 am. This service runs from Rotterdam via Delft, The Hague, Leiden, Schiphol Airport, Amsterdam Centraal and Utrecht. During Thursday nights the trains are rerouted via Gouda due to track maintenance works between Rotterdam and The Hague. On Friday and Saturday nights NS runs one or two additional trains after the last daytime service has departed between cities in the Randstad region and regional cities throughout the Netherlands. Regional public transport Almere: Keolis operates line M1, M2, M3, M4, M5, M6 and M7 from 4.30 am until 2.00 am and thus operate 22 hours a day. All services start at Almere Centrum station and radiate outwards towards the suburbs. On Saturdays lines M3, M4, M5, M6 and M7 operate from 4:30 am until 3.00 am and lines M1 and M2 operate 24 hours a day. Amsterdam: City transport operator GVB operates lines N85 and N87 seven nights a week, and operates lines N81, N82, N83, N84, N88, N89, N91, N93 on Thursday, Friday and Saturday night and express line N86 on Friday and Saturday night. These lines start at the Central Station and radiate out towards the suburbs. GVB operates also the Ferry F3 (Buiksloterweg - Centraal Station) 24/7 with a 12-minute frequency between 12:00am and 6:24am. Regional bus operator EBS operates lines N01, N04 and N14 at an hourly frequency on Friday and Saturday night from the Central Station towards the cities of Purmerend and Hoorn and the towns in between. Regional bus operator Connexxion operates both line N30 and N97 seven nights a week at a 30-minute frequency. line N30 operates seven nights a week from Bijlmer ArenA station to Haarlem via Amstelveen and Schiphol Airport and line N97 operates from the Central Station via Schipol Airport towards Nieuw-Vennep. On Thursday, Friday and Saturday nights Connexxion operates lines N47 and N57 from the Central Station towards Uithoorn and Aalsmeer at an hourly frequency. On Friday and Saturday night Connexxion operates line N80, N92 and N94 at an hourly frequency departing from Leidseplein. Line N80 runs towards Haarlem and line N92 and N94 run towards the city of Zaandam