Opening hours
| Monday | 08:00 am - 09:00 pm |
| Tuesday | 08:00 am - 09:00 pm |
| Wednesday | 08:00 am - 09:00 pm |
| Thursday | 08:00 am - 09:00 pm |
| Friday | 08:00 am - 09:00 pm |
| Saturday | 10:00 am - 05:30 pm |
| Monday | 08:00 am - 06:00 pm |
| Tuesday | 08:00 am - 06:00 pm |
| Wednesday | 08:00 am - 06:00 pm |
| Thursday | 09:30 am - 06:00 pm |
| Friday | 08:00 am - 06:00 pm |
| Saturday | 10:00 am - 02:00 pm |
Outside service hours the following services are not available: issuing of library cards, payment of interlibrary loan fees, set up of interlibrary loan accounts.
The HLSB is closed at both locations on Sundays, public holidays, Shrove Monday, Holy Saturday, Christmas Eve and New Year's Eve.
Closure days 2026: Jan 1st (New Year’s Day); Feb 16th (Shrove Monday); April 3rd - April 6th (Good Friday to Easter Monday); May 1st (May Day); May 14th (Ascension Day); May 25th (Whit Monday); June 4th (Corpus Christi); Oct 3rd (German national holiday); Dec 24th - 26th (Christmas); Dec 31st (New Year’s Eve)