Greenwich Meridian
Historic and scientific landmark marking the Prime Meridian line, the reference for global time zones and longitude measurement. Read more…
Opening hours
| Monday | 10:00 AM–5:00 PM |
| Tuesday | 10:00 AM–5:00 PM |
| Wednesday | 10:00 AM–5:00 PM |
| Thursday | 10:00 AM–5:00 PM |
| Friday | 10:00 AM–5:00 PM |
| Saturday | 10:00 AM–5:00 PM |
| Sunday | 10:00 AM–5:00 PM |
Admission
Free for children under 4; last entry 16:15
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The Greenwich Meridian is the internationally recognized zero degrees longitude line passing through the Royal Observatory. Established as the prime meridian at the 1884 International Meridian Conference, it serves as the foundation for global navigation, timekeeping, and cartography. The site features a marked line dividing the eastern and western hemispheres, alongside astronomical instruments and educational exhibits that highlight its significance in the history of time and navigation. Located in an accessible courtyard with views of London, the landmark maintains its heritage as a scientific monument and viewpoint.
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Add Greenwich Meridian to Your Trip
Create a detailed travel itinerary with smart routing, time estimates, and everything you need for a perfect trip.