We built Moon Calendar: Moon phases, full Moon dates, moonrise and eclipses in UK time

Ask a search engine when the next full Moon is and you get a date. Whether it is your date is another matter. The full Moon on 24 December 2026 is at 01:28 GMT, which is still the evening of 23 December in New York. The instant is the same everywhere, but the clock reading is not. Eclipse coverage has a similar gap: it says where totality falls, not what you will see from your own garden.

So we built Moon Calendar, a free site for Moon dates and times in UK time: tonight's phase, the next full Moon, moonrise for 24 UK places and which eclipses you can see from here.

What it does

Tonight first. The home page shows the phase, how much of the Moon is lit, whether it is a full Moon, London moonrise and moonset, and the next four phases.
Full Moons. The full Moon page counts down to the exact moment, names the Moon, and lists every full Moon this year and next with its distance and flags for supermoons, Blue Moons and eclipses.
Moonrise by place. The moonrise and moonset page covers 24 UK places, with the compass direction it rises toward and a table for the month.
Eclipses. For a solar eclipse: start, maximum, end and the share of the Sun covered in each of the 24 places. For a lunar eclipse: how high the Moon is at the peak, or that it is below the horizon.

What's inside

Moon calendars for any month from 1900 to 2100, with 36 monthly pages for 2026 to 2028 and one for each year.
12 full Moon month pages, and a page of the twelve full Moon names.
A page for each of the eight Moon phases, and the 14 eclipses of 2026 to 2028 with the UK view of each.
Printable calendars for A4 or US Letter, and a calendar file for Google, Apple or Outlook.
28 smaller tools and guides, such as a phase calculator, the Moon on your birthday and a dark-sky calendar with CSV download.

Who it's for

People who want a plain answer to "is it a full Moon tonight?"
Photographers and stargazers planning around moonrise and dark skies.
Teachers and parents: the Moon facts page has a phase simulator and a worksheet for ages 8 to 12.

No account, no ads, nothing to pay. It is built for the UK. Times default to UK time (GMT in winter, BST in summer) and the moonrise and eclipse pages list UK places only. You can pick another time zone.

How it's built

It's a Next.js site on Vercel, rendered on the server when you load a page, so "tonight" is always tonight. The astronomy comes from astronomy-engine, an open-source JavaScript library. We cross-checked the lunar eclipse list against NASA's catalogue, and our tests compare 2026's phase times with the U.S. Naval Observatory's tables, allowing two minutes.

The harder part was the clock. UK time flips between GMT and BST. Some dates have no moonrise, because the Moon rises later each day, and the tables say "No event". When the clocks go back the same hour happens twice, so the calculators ask which one you mean. Every choice is a URL parameter, so any result can be bookmarked or shared.