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Visit the Royal Observatory, home of the Greenwich Mean Time. Stand on the iconic Prime Meridian of the World and learn to see the universe in a new light.


  • From historic objects, telescopes, and cutting-edge astronomy, there is plenty to see and do here.
  • Take a picture of yourself standing on the iconic Prime Meridian.
  • Get up close and personal with John Harrison’s famous timekeepers and the Great Equatorial Telescope.
  • See the amazing Flamsteed House, the Greenwich Time Ball, and the Octagon Room at Greenwich.
  • Find your way around the observatory with a versatile audio guide.
  • Upgrade your ticket to the Day Explorer Pass, and enjoy access to historical sailing ship Cutty Sark along with the Royal Observatory.


  • Entry to Royal Observatory Greenwich
  • Entry to Cutty Sark (optional upgrade)
  • Audio guide


  • Planetarium show

cancellation policy

These tickets can't be cancelled or rescheduled.

your experience

Stand on the Prime Meridian

Revel in the feeling of standing on the line that splits the Earth into the eastern and western hemispheres. Keep an eye open for the green laser that is directed at the London Skyline from the top of the Greenwich Park hill marks the Prime Meridian. This is an excellent place to grab a photograph of yourself! Take the opportunity to learn about the story behind the Greenwich Mean Time.

Explore other Iconic Centres in Greenwich

Learn more about the ingenious clocks made by John Harrison to help sailors determine their longitude at sea, drastically reducing the danger of ships, crew, and cargo being lost to the waters. The clocks themselves look incredibly sophisticated and beautiful. There are four versions of the clocks, H1 to H4, the H1 being released in 1735. Along with others, it was widely heralded as a great milestone in the history of clock-making. Science enthusiasts are sure to appreciate the insight and creativity behind Harrison’s revolutionary timekeepers.

Take the chance to stand beneath the Great Equatorial Telescope, a 28-inch refracting telescope that is the largest of its kind in the UK. Originally designed for astrophotography, it has become indispensable for the observatory's research into double stars. Don't miss out on seeing the telescope's distinct "onion roof" when you look up at the Royal Observatory.

Discover the Octagon Room and the Time Ball

Filled with archaic timepieces and instruments, the Octagon Room at Flamsteed House is the oldest part of the Royal Observatory Greenwich. Commissioned by King Charles II, it has been designed by Sir Christopher Wren. The light-filled space is designed to provide an uninterrupted view of the night sky to the astronomers. The time ball located on top of Flamsteed House still drops on a daily basis at 1pm! First used in 1883, this is one of the world's earliest public time signals.

day explorer pass

Opt for this pass to visit two exciting attractions in one day - the Royal Observatory and Cutty Sark. A historical sailing ship that was the fastest of its time, Cutty Sark is now an award-winning visitor attraction. From amazing views of the main deck to exploring the lower hold, there is plenty to see and do for the entire family.

You can also tune in to an audio guide that will give you a glimpse of what life was really like at the sea, along with thrilling tales from the history of Cutty Sark.

know before you go

Audio Guide

You can download the Smartify app for free to learn more about the Royal Observatory and Cutty Sark. Alternatively, you can sign in to free WiFi when you arrive at the venue, and simply scan the QR code with your smartphone to begin.


  • Wheelchair access at the Royal Observatory is limited to The Meridian line, Meridian building ground floor, Astronomer’s Garden, and Camera Obscura. There is no disabled access to the older, Grade I listed buildings including Flamsteed House and Great Equatorial telescope.
  • A limited number of manual wheelchairs are available to borrow free of charge from the Information Desk.
  • All the toilet and baby-change facilities at the Royal Observatory are wheelchair accessible.

Operating Hours

  • Daily: 10am - 5pm.
  • Time slots are available every 30 mins from 10:30am to 4pm.

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How to Redeem Your Ticket

You will receive your mobile voucher in your email shortly. You can display this mobile voucher along with valid photo ID at the attraction. If you have purchased reduced price tickets, please carry your valid photo ID proof for verification. You should arrive at the attraction on the date and start time specified above.

Meeting Point

Royal Observatory Greenwich, Blackheath Avenue, Greenwich, London SE10 8XJ

Getting there

By Bus

  • Reach the bus stop near Greenwich using buses on routes 129, 177, 180, 188, 199, or 386.

By Metro

  • Take the Thameslink, Southeastern, or Light Rail (DLR) lines to the Greenwich stop. The observatory is a short 15-minute walk from here.


This ticket is valid for the date and time selected during checkout.

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