Quick Answer
The next full moon’s exact date and time (UTC), how many days away it is, and the next four full moons are computed on this page from the Meeus lunar algorithm, refreshed hourly. The Next Full Moon tool at https://practicalwebtools.com/science/astronomy/next-full-moon also lists the next new moon and the traditional name of each upcoming full moon.
How It Works
Open the page — the next full moon’s date, exact UTC time, and days-until count are already computed
Read the traditional name of the next full moon in the hero panel
Check the next four full moons in the table for planning further ahead
Note the next new moon if you need the darker-sky window instead
Key Facts
- Shows the next full moon’s exact date and time in UTC, plus a days-until count
- Lists the next four full moons with dates, times, and traditional names
- Includes the next new moon for planning the darker sky windows
- Computed from the truncated Meeus lunar algorithm (accurate to within minutes)
- Recomputed server-side every hour, so the answer stays current
- Times are UTC; the calendar date of a full moon can shift by timezone
- Traditional names are folkloric and month-indexed in UTC
Frequently Asked Questions
When is the next full moon?
The exact date and time are computed at the top of this page from the current clock, using the truncated Meeus lunar algorithm. Full moons recur every 29.53 days on average, so the next one is always within about a month; the days-until count and the exact UTC instant are shown in the panel above.
What time is the full moon exactly?
A full moon is a single instant — the moment the moon stands exactly opposite the sun — not a whole night. This page shows that instant in UTC. In other timezones the clock time differs, and when the instant falls near midnight the calendar date can differ by one day between locations.
How often is there a full moon?
Roughly once every 29.53 days (the synodic month), which is why most months get one full moon. Because 12 synodic months total about 354 days — 11 short of a calendar year — about every two to three years a single calendar month picks up a second full moon, called a Blue Moon.
Why does the full moon date depend on my timezone?
The instant of the full moon is the same worldwide, but clocks read differently across timezones. A full moon at 23:30 UTC on 24 December happens on 25 December already in Asia and the Pacific, so calendars in different countries can print different full-moon dates for the same moon.
How accurate are these full moon times?
The new, quarter, and full moon instants come from the truncated Meeus algorithm in Astronomical Algorithms, which matches published almanac times to within a couple of minutes. The days-until count is rounded up to whole days, so it can read one day higher than a precise countdown late in a day.
What do the traditional full moon names mean?
Names like Wolf Moon, Strawberry Moon, and Harvest Moon come from folk tradition — largely the Farmers’ Almanac list tied to the lunar month in which each moon falls. They are cultural labels, not astronomical events, and this page indexes them by the UTC month of each full moon.