The opening hours of the Library's branches from 1 July 2025 to 30 September 2025 are as follows:

Mytilene Branch
Monday - Friday: 8:00 - 15:00

Chios Branch
Monday - Friday: 8:00 - 15:00

Samos branch
Monday - Friday: 8:00 - 15:00

Rhodes Branch
Monday - Friday: 7:30 - 15:00

Syros Branch
Monday - Friday: 8:00 - 15:30

Lemnos Branch
Monday - Friday: 9:30 -17:00