During the academic year the GEWIS room is open from 8:30 until 17:00 (Monday-Friday).
During exam weeks the GEWIS room is open from 08:30 until 18:00 (Monday-Friday).
During holidays the GEWIS room is open from 10:00 until 16:00 (Monday-Friday) and you can enjoy a cup of coffee, beer or board game!
On info.gewis.nl you can see whether someone is present outside these hours.