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.
Weekend Codability sessions for young people run on Saturday and Sunday afternoons.
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 2 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 3 Mar Colossus and Tunny Galleries open all day, rest of TNMOC closed for private event, No Insight tour
We 4 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 5 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 6 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 7 Mar Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 8 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 9 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 10 Mar 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 11 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 12 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 13 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 14 Mar Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 15 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 16 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 17 Mar 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 18 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 19 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 20 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 21 Mar Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 22 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 23 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 24 Mar 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 25 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 26 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 27 Mar Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 28 Mar Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 29 Mar Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day