Moon Phase Calendar for Any Date and Location
This moon phase calendar shows tonight's phase, the moon's illumination, and moonrise and moonset times for your exact location. Browse a full month at a glance, jump to any date, and see when the next New Moon, Full Moon, and quarter phases fall.
It's built for stargazers, night photographers, gardeners, and anyone who follows the lunar cycle — set your location once, then move forward or back through the dates to see exactly how the moon looks and behaves each night.
How to Use the Moon Calendar
Set your location
Pick your Country and then your State / City from the searchable dropdowns, or tap the crosshairs button to detect your location by GPS. Moonrise and moonset depend on where you are, so a precise location gives the most accurate times. Your choice is saved for next time.
Choose a date
The calendar opens on today by default. Use the left and right arrows to step one day at a time, click the date field to jump to any date with the picker, or press Tonight to return to the current day.
Read the moon data
See the phase name and illumination in the hero, plus moonrise, moonset, altitude, and azimuth. Browse the monthly grid for the phase on every day, check Upcoming Events for the next phases, and open Moon Details for distance and angle data.
Explore the month
Each calendar day shows a mini moon icon and its lunar date. Full Moon and New Moon days are highlighted, and today is marked. Click any day to update every panel to that date, or use the month arrows to look ahead or back.
Features
Real-Time Moon Phase Visualization
A crisp SVG moon shows the exact illuminated portion for your date, from a thin crescent to a full moon, drawn from precise astronomical calculations.
Eight Moon Phases
Every phase is named: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, and Waning Crescent.
Moonrise and Moonset Times
Get rise and set times for your exact coordinates, plus the moon's current altitude above the horizon and its compass direction (azimuth).
Interactive Monthly Calendar
Browse a whole month with a mini moon on every day, lunar dates below each date, and Full Moon, New Moon, and today highlighted. Click any day for full data.
Upcoming Lunar Events
See the next New Moon, First Quarter, Full Moon, and Last Quarter with the exact date and a countdown in days so you never miss a phase.
Detailed Moon Data
Expand Moon Details for distance in kilometers, exact illumination, moon age, parallactic angle, and phase angle — handy for astronomy and astrophotography.
Lunar Calendar Integration
Traditional lunar dates appear in the phase hero and throughout the grid, with the first day of each lunar month marked — useful for cultural events and festivals.
Location-Aware with GPS Support
Choose from a worldwide list of countries and states with searchable, flag-tagged dropdowns, or detect your spot by GPS. Your location is remembered.
Dark Mode Support
A built-in dark theme tuned for the lunar palette adapts the moon graphic, calendar cells, and text seamlessly to your preferred mode.
Frequently Asked Questions
What moon phase is it today?
The calendar opens on today and shows the current phase by name, the illumination percentage, and a moon graphic matching how it looks tonight. Set your location for accurate moonrise and moonset times, then press Tonight any time to jump back to the current date.
What are the 8 moon phases?
The lunar cycle moves through New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Last Quarter, and Waning Crescent. "Waxing" means the lit part is growing toward full, and "waning" means it is shrinking back toward new. The calendar names the phase for whatever date you select.
When is the next full moon?
The Upcoming Events panel lists the next New Moon, First Quarter, Full Moon, and Last Quarter, each with its exact date and a countdown in days. Because the events are calculated from the date you are viewing, you can also look ahead to find phases from any point in time.
What does the illumination percentage mean?
Illumination is how much of the moon's visible face is lit by the sun. At 0% it is a New Moon and not visible; at 100% it is a Full Moon. A reading near 50% corresponds to either the First Quarter or the Last Quarter.
Why do moonrise and moonset times change with my location?
The moon's position in the sky depends on where you are on Earth, so two cities a few hundred kilometers apart can have moonrise times that differ by several minutes. Selecting your specific state or city gives the most accurate rise and set times.
Why does the moon sometimes not rise or set?
At high latitudes the moon can stay above the horizon all day ("always up") or below it all day ("always down"), so the calendar shows that label instead of a time. This happens because the moon's orbit is tilted relative to the equator, much like the sun behaves near the poles.
What is Moon Age, and how is the phase calculated?
Moon Age is the number of days since the last New Moon; a full cycle takes about 29.53 days, so an age near 14.7 days is roughly a Full Moon. The phase, illumination, and position are computed with the SunCalc library, which uses well-established astronomical algorithms accurate to within minutes for rise and set times.
Do I need to enable GPS, and what about offline use?
GPS is optional — you can always pick your country and state manually, and if you do use GPS the coordinates stay in your browser. Once the page has loaded, the moon calculations run entirely in your browser, so they keep working offline; only changing your location needs an internet connection to fetch geographic data.
What is the lunar date shown next to each day?
The lunar (traditional) calendar is a date system based on the moon's phases, used by many cultures for holidays, festivals, and ceremonies. This tool shows the matching lunar day and month beneath each solar date and in the phase hero, with the first day of each lunar month specially marked.
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