July, August, October and during Lower Saxony school holidays
- daily from 10 am to 5 pm

December to June and September
- from Tuesday to Sunday from 10 am to 5 pm
- plus bank holiday and during Lower Saxony school holidays also Mondays

Bank holidays in Lower Saxony
- 10 am to 5 pm (including Mondays)

November (only on weekends of certain weeks)
- in 2022:  closed from 14th to 18th and from 21th to 25th november. Groups on demand.

Closed on 24th December

• Christmas holidays 2021/2022: 23 december 2021 to 9 january 2022 (24 december closed)
• Winter holidays: 29 january to 1 february 2022
• Easter holidays: 2 april to 19 april 2022 
• Pentecost holidays: 4 june to 7 june 2022 
• Summer holidays: 1 july to 31 august 2022 
• Autumn holidays: 1 to 31 october 2022 
• Christmas holidays 2022/2023: 23 december 2022 to 8 january 2023 (24 december closed)