General opening hours apply to the Bonn city administration, but many offices, departments or subject areas have special opening hours or offer appointments.

Monday and Thursday from 8 a.m. to 6 p.m.

Tuesday, Wednesday and Friday from 8 a.m. to 1 p.m.

Additionally on Tuesday and Wednesday a telephone service time from 13 to 16 o'clock is offered.

Friday from 8 to 13 o'clock