Malgosia Fiebig is the Dom Tower's carillonneur. She plays the carillon by hand on fixed days and at fixed times:
11:00-12.00 hours Saturdays throughout the year
16:00-17.00 hours Fridays (from April until November)
19:30-20:30 hours 1 May (May Day)
20:02–21:00 hours 4 May (Remembrance of the Dead)
10:00-11:00 hours King's Day and Liberation Day
23:30-00:00 hours New Year's Eve
The peal of the carillon can be heard throughout Utrecht's city centre.
In July and August, the traditional Summer Evening Carillon Concerts take place each Monday night. The final concert in August is always spectacular, with an often daring choice of music. In addition, the carillon is played on a number of other special occasions throughout the year, for example during the Old Music Festival.