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 8 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 9 Dec 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 10 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 11 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 12 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 13 Dec Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 14 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 15 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 16 Dec 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 17 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 18 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 19 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 20 Dec Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 21 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 22 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 23 Dec 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 24 Dec CLOSED
Th 25 Dec CLOSED
Fr 26 Dec CLOSED
Sa 27 Dec Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 28 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 29 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Tu 30 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
We 31 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Th 1 Jan CLOSED
Fr 2 Jan Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 3 Jan Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 4 Jan Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Mo 8 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Tu 9 Dec 2pm Insight Tour, Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
We 10 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Th 11 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day
Fr 12 Dec Colossus and Tunny Galleries open all day, rest of TNMOC by appointment only
Sa 13 Dec Fully open from 12 noon - 5pm, Colossus and Tunny Galleries open all day
Su 14 Dec Fully open from 12 noon - 4pm, Colossus and Tunny Galleries open all day