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

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 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
Mo 20 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 21 Oct 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 22 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 23 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 24 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 25 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 26 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 27 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 28 Oct 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 29 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 30 Oct Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 31 Oct Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 1 Nov Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 2 Nov Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Mo 3 Nov Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 4 Nov 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 5 Nov Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 6 Nov Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Fr 7 Nov Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 8 Nov Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 9 Nov Fully open 12 noon - 5pm, Colossus and Tunny Galleries open all day