DCU Library
Opening Hours
Opening Hours for DCU's three libraries: Cregan Library (St Patrick's Campus), O'Reilly Library (Glasnevin Campus) and Woodlock Hall Library (All Hallows Campus)
Semester 2 Opening Hours
| Monday 6th April - Sunday 12th April | Cregan Library | O'Reilly Library | Woodlock Hall library |
| Easter Monday* | 08:00 - 20:00 | 08:00 - 20:00 | CLOSED |
| Tuesday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 21:00 |
| Wednesday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 17:00 |
| Thursday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 21:00 |
| Friday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 17:00 |
| Saturday | 09:30 - 17:00 | 09:30 - 17:00 | CLOSED |
| Sunday* | 09:00 - 17:00 | 09:00 17:00 | CLOSED |
| Monday 13th April - Sunday 26th April | Cregan Library | O'Reilly Library | Woodlock Hall library |
| Monday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 17:00 |
| Tuesday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 21:00 |
| Wednesday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 17:00 |
| Thursday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 21:00 |
| Friday* | 08:30 - 00:00 | 08:30 - 00:00 | 09:30 - 17:00 |
| Saturday | 09:30 - 17:00 | 09:30 - 17:00 | CLOSED |
| Sunday* | 09:00 - 17:00 | 09:00 - 17:00 | CLOSED |
*Study Only Hours means the library is open for study only, with no library help desk service.
Books can be borrowed and returned using self-service machines, access is with valid DCU ID card only.
Study Only Hours Cregan and O'Reilly Library: Monday to Thursday 8pm to midnight, and Friday 5pm to midnight; Sundays in April 9am - 5pm
Study Only Hours Woodlock Hall Library: Tuesday and Thursday 5pm - 9pm
Easter 2026 Friday 3rd April - Monday 6th April , 8am - 8pm Cregan and O'Reilly Library