administration: Monday to Friday 8h00 to 18h00, trips and OPUS card information: Monday to Friday 7h00 to 19h30, Saturday, Sunday and legal holidays 8h30 to 16h30, comments: Monday to Friday 7h00 to 19h30, Saturday, Sunday and legal holidays 8h30 to 16h30, lost and found: Monday to Friday 8h00 to 18h00