the hours of 00:00 and 04:00 from Dublin city centre and journey to the suburbs. The service only operates on Fri/Sat night however (technically the early hours of Saturday and Sunday), and at an increased fare. Dublin: Since December 2019, Dublin Bus started operating some routes on the regular bus network on a 24-hour basis. As of January 2023, there are 10 such routes. These include route numbers 15, 39a, 41, C1, C2, C5, C6, G1, G2 and N4. The fare on these 24-hour routes remains the same at night as it is during the day. Italy Rome: 30 night routes of the ATAC buses run every night between 12AM-5AM. Milano: 5 night bus routes (NM1-NM2-NM3-N25/N26 and trolleybus 90/91) of the ATM in service 7 days and other 9 lines (N15-N24-N27-N42-N50-N54-N57-N80-N94) work only on weekends. Palermo: 7 night bus routes (N1 to N7) of the AMAT in service 7 days. Lithuania Vilnius: Vilniaus viešasis transportas (VVT) are the company in charge of operating the bus network and trolleybus network in the city of Vilnius. The buses transport about 298,000 passengers every day on their normal weekday service which operates between 05:30-23:30. The night bus route network was designed in 2015 to allow a safe journey from the city centre to the most densely populated neighbourhoods. There are normally six night bus routes in the city that operate from 00:00 to 05:00 (A88N, A101N, A102N, A103N, A104N and A105N), but due to the COVID-19 pandemic only the A88N (Airport–Center–Europa Shopping Center) has been running to ensure people can get from the airport to the city, and vice versa. The A88N bus runs every 40 minutes (approx.) throughout the night from 23:30 to 05:30. All tickets are valid onboard. The rest of the Vilnius night bus routes will be returned to normal operation when public transport recovers to pre-COVID passenger flow. Norway Oslo: The night bus () in Oslo is provided by the city's public transport authority Ruter. The night buses run Friday night, Saturday night and on nights before public holidays. Additionally, the lines 31 and 37 run 24 hours a day year-round. There is no increased night fare, meaning the passenger can use the same tickets both day and night. Tromsø: Troms fylkestrafikk operate the buses in Tromsø which is the main public transport service there. Buses run from early morning to late night Monday–Friday, with less frequent service on