Opening Times

The Colossus Galleries are open daily from 10.30am to 5pm. The full museum is open every Thursday, Saturday and Sunday afternoons from 12 noon to 5pm. There are Insight Guided Tours at 10.30am on Thursdays and 2pm on Tuesdays, see below for details. Booking required for Insight Guided Tours.
Every week day, the Museum accepts advanced bookings for 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 23 May Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Tu 24 May Colossus Galleries open 10.30am - 5pm, Guided Tour 2pm, full Museum groups by appointment only
We 25 May Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Th 26 May Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 27 May Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Sa 28 May Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 29 May Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 30 May Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Tu 31 May Colossus Galleries open 10.30am - 5pm, Guided Tour 2pm, full Museum groups by appointment only
We 01 Jun Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Th 02 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 03 Jun Closed for a Private Event
Sa 04 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 05 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 06 Jun Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Tu 07 Jun Colossus Galleries open 10.30am - 5pm, Guided Tour 2pm, full Museum groups by appointment only
We 08 Jun Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Th 09 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 10 Jun Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Sa 11 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 12 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 13 Jun Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Tu 14 Jun Colossus Galleries open 10.30am - 5pm, Guided Tour 2pm, full Museum groups by appointment only
We 15 Jun Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Th 16 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 17 Jun Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Sa 18 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 19 Jun Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm