圖書館開放時間可因應需要而改動，請於到訪前查閱圖書館網頁。
| Monday – Friday | Saturday | Sunday | |
| 新亞書院圖書館 | |||
| 29 May – 21 June | 2023 9:00 a.m. – 10:00 p.m. | 9:00 a.m. – 7:00 p.m. | 11:00 a.m. – 7:00 p.m. |
| 22 June 2023 端午節 |
關閉 | 關閉 | 關閉 |
| 23 June – 30 June | 2023 9:00 a.m. – 10:00 p.m. | 9:00 a.m. – 7:00 p.m. | 11:00 a.m. – 7:00 p.m. |
| 1 July 2023 香港特別行政區成立紀念日 |
關閉 | 關閉 | 關閉 |
| 2 July – 20 August | 2023 9:00 a.m. – 7:00 p.m. | 9:00 a.m. – 5:00 p.m. | 關閉 |
| 21 August 2023 onwards | 8:20 a.m. – 10:00 p.m. | 8:20 a.m. – 7:00 p.m. | 11:00 a.m. – 7:00 p.m. |
| 地庫 | |||
| 29 May 2023 onwards | 二十四小時開放予中文大學教職員及學生使用# | ||
# 新亞書院圖書館開放期間，地庫將分別於星期一至六或公眾假期早上11時及星期日下午1時30分，暫停開放30分鐘，以便進行清潔。
