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 26 Jan Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 27 Jan 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 28 Jan Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 29 Jan Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 30 Jan Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 31 Jan Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 1 Feb Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 2 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 3 Feb 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 4 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 5 Feb Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 6 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 7 Feb Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 8 Feb Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 9 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 10 Feb 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 11 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 12 Feb Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 13 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 14 Feb Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 15 Feb Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 16 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 17 Feb 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 18 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 19 Feb Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 20 Feb Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 21 Feb Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 22 Feb Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day