週一～五 Monday to Friday 08:10 am─21:00 pm 週六～日 Saturday & Sunday 13:00 pm─17:00 pm
♦♦♦ 天文數學館門禁管制時間 Building Access Control Hours ♦♦♦ 數學系圖書室位於「天文數學館」內，非上班時間（週一至週五 5:00 PM–8:00 AM）、例假日及國定假日全日實施門禁管制，未持授權證件者恕無法進入館舍及圖書室。 The Mathematics Department Library is located in the Astronomy–Mathematics Building. Access is restricted outside office hours (Monday–Friday, 5:00 PM–8:00 AM) and all day on weekends and national holidays; authorized identification is required.