Royal Observatory Greenwich

Science & Technology Museums

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The historic home of GMT and the Prime Meridian

Ready to be in two places at once? Stand with one foot in the eastern hemisphere and one in the west at London's Royal Observatory in Greenwich. At the home of space and time, you'll learn all about the Greenwich Meridian Line and GMT, and how it was chosen to be the Prime Meridian of the world back in 1884! You'll hear stories of astronomy, space and the stars, and you might even leave with fresh dreams of exploring the world.

Instant ticket delivery
Last admission: 30min before closing
Smartphone tickets accepted
Wheelchair accessible
Mandatory mask


What's included

Entry to the Royal Observatory, the Meridian line, Flamsteed House, John Harrison’s timekeepers, Camera Obscura, the Great Equatorial Telescope, the Astronomy Centre, the Altazimuth Pavilion, and the galleries

Free audio guide – available in 7 languages

What's not included

Entry to The Peter Harrison Planetarium

Children under 5 get in for free. Please get a free ticket for them

Free admission for carers accompanying visitors with disabilities


Show your smartphone voucher at the admission desk to enter the Observatory.

Additional info

Getting There

Greenwich DLR/rail (20-minute walk via King William Walk)

Cutty Sark DLR (15-minute walk via King William Walk)

Maze Hill rail station (15-minute walk via Park Vista)

Blackheath rail station (20-minute walk across the heath)


The Royal Observatory is close to the National Maritime Museum and the Queen’s House, which are free to visit!

This ticket does not include entry to The Peter Harrison Planetarium

Opening hours

Monday : 10:00 - 17:00

Tuesday : 10:00 - 17:00

Wednesday : 10:00 - 17:00

Thursday : 10:00 - 17:00

Friday : 10:00 - 17:00

Saturday : 10:00 - 17:00

Sunday : 10:00 - 17:00


How to get there

Royal Observatory Greenwich

Blackheath Avenue, SE10 8XJ