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. And daily during August for the Summer Bytes Festival. 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 25 Jul Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Tu 26 Jul Colossus Galleries open 10.30am - 5pm, Guided Tour 2pm, full Museum groups by appointment only
We 27 Jul Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Th 28 Jul Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 29 Jul Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Sa 30 Jul Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 31 Jul Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 01 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Tu 02 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm Guided Tour 2pm
We 03 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Th 04 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 05 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Sa 06 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 07 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 08 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Tu 09 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm Guided Tour 2pm
We 10 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Th 11 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 12 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Sa 13 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 14 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 15 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Tu 16 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm Guided Tour 2pm
We 17 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Th 18 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 19 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Sa 20 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 21 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 22 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Tu 23 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm Guided Tour 2pm
We 24 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Th 25 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 26 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Sa 27 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 28 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Mo 29 Aug Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Tu 30 Aug Colossus Galleries open 10.30am - 5pm, Guided Tour 2pm, full Museum groups by appointment only
We 31 Aug Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Th 1 Sep Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm, Guided Tour 10.30am
Fr 2 Sep Colossus Galleries open 10.30am - 5pm, full Museum groups by appointment only
Sa 3 Sep Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm
Su 4 Sep Fully open 12 noon - 5pm, Colossus Galleries open 10.30am - 5pm