Opening Times

General Opening Times

The Colossus and Tunny galleries are open daily.
The rest of TNMOC is open every Thursday, Saturday and Sunday afternoons from 12 noon.
There are usually Insight Guided Tours at 2pm on Tuesdays, but there are exceptions and additions to this so please check the listing below. Booking required for Insight Guided Tours.
Every week day, the Museum usually has educational group and/or corporate group visits.
If you are coming to TNMOC only, there is no need to pay the Bletchley Park Trust entrance fee.

Additional Opening Times

Summer Bytes Festival for all the family every day 11am - 5pm, 26 July - 2 September

Thanks to the efforts of the TNMOC volunteers, the Museum may also be open at other times - watch for updates below.

TNMOC Opening Times over the next few weeks

Date What's Open
Mo 1 Sep Summer Bytes! Fully open 11am - 5pm, Colossus and Tunny Galleries open all day
Tu 2 Sep Summer Bytes! Fully open 11am - 5pm, Colossus and Tunny Galleries open all day
We 3 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 4 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 5 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 6 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 7 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 8 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 9 Sep 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 10 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 11 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 12 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 13 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 14 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 15 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 16 Sep 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 17 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 18 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 19 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 20 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 21 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 22 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 23 Sep 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 24 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 25 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 26 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 27 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 28 Sep Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 29 Sep Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 30 Sep 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 1 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 2 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 3 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 4 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 5 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 6 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 7 Oct 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 8 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 9 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 10 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 11 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 12 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 13 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 14 Oct 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 15 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 16 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 17 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 18 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 19 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day