Sun & Moon tracker for Android and iOS
Dayclipse shows sunrise and sunset, golden and blue hour, twilight, Moon phases and moonrise for tens of thousands of cities worldwide — calculated right on your phone.
Explore every feature
Actual app screen · New York during evening golden hour
Why Dayclipse
Sunrise, sunset, golden hour, blue hour and every twilight phase for the place and date you choose.
Phase and illumination, moonrise and moonset, where it sits in the sky and a calendar of the month ahead.
The astronomy and the world city list are built in, so you can read the sky without a signal.
Compass-aware dials and AR Sky View point you toward the Sun and Moon on phones with the right sensors.
Features
Live sky
The home screen shows a live sky scene for your chosen city, with the Sun and Moon in their calculated positions and a sky color that follows the Sun's real altitude.
The Sun
Open the Sun tab for the times that shape your day: sunrise and sunset, morning and evening golden hour, blue hour, solar noon and total daylight.
Times assume an ideal flat horizon; hills, buildings and weather can change what you actually see.
The Moon
The Moon tab explains tonight's Moon: its phase and illumination, when it rises and sets, where it is in the sky and how its altitude changes through the day.
The observing guide is based on geometry only — it doesn't know about clouds or terrain.
Sky events
The Events tab lists the day's sky events in order and draws them on a layered timeline — daylight, civil, nautical and astronomical twilight, darkness, golden and blue hour.
Photography planner
The photography planner puts the Sun and Moon on a true-north direction dial, lets you drag through the day, and lists the golden and blue hour windows for the selected date.
Dayclipse doesn't model terrain, clouds or haze, and doesn't suggest lenses or exposure settings.
One angle, every kind of light
Sunrise and sunset use the standard −0.833° criterion, which accounts for atmospheric refraction and the size of the Sun's disc.
How it works
On first launch, search for a city, region or country — or tap a popular location. The list is built in, so it works offline. You can change places or star favorites at any time.
The home screen shows the next event with a countdown, the current period of light and a sky scene with the Sun and Moon. Drag the timeline to preview other times, or step to another date.
Scroll down for the Sun, Moon and Events tabs. From the top bar, open the photography planner, share a sky card, or adjust settings.
Made for everyday skies
Check sunset and how long civil twilight lasts before heading out for a run, a hike or a beach evening.
See when golden hour and blue hour start and end, and which direction the Sun will be in, before you pick up the camera.
Find out tonight's phase, when the Moon rises and sets, and how well placed it is — then use AR Sky View to spot it.
Look up your destination before you arrive. Every time is shown in that place's own time zone, even when you're offline.
Dayclipse is an everyday sky companion. It isn't a navigation, safety or professional survey tool, and it doesn't include weather forecasts.
Offline & privacy
Sun and Moon positions, times and phases are calculated locally — no internet connection needed.
You choose a city from the built-in list. Your selected places and favorites stay on your device.
There's nothing to sign up for. Settings are saved on your device.
The camera preview is used live and never recorded or saved.
When you're online, Dayclipse uses Google Firebase Analytics for basic usage statistics and Firebase Crashlytics for crash reports. These services receive device and app information, not your chosen cities. Read the Privacy Policy.
FAQ
Dayclipse is a Sun and Moon tracker for Android and iOS. Pick a city and it shows sunrise and sunset, golden hour and blue hour, civil, nautical and astronomical twilight, the Moon's phase, moonrise and moonset, and where the Sun and Moon are in the sky — for today or a future date.
See all featuresYes. All Sun and Moon calculations run on your phone, and the city list and time-zone data are built into the app, so you can search places and read the sky without a connection. When a connection is available, the app may send basic usage statistics and crash reports through Google Firebase.
Read the Privacy PolicyNo. Dayclipse doesn't use GPS or ask for location permission. You choose a city from the built-in list, and the selected city and your favorites are stored only on your device.
By the Sun's altitude. Golden hour is when the Sun is between 4° below and 6° above the horizon; blue hour is when it is between 6° and 4° below the horizon. Dayclipse shows both the morning and evening windows for the selected date.
Golden hour vs blue hourDayclipse uses established astronomical algorithms (based on Meeus and NOAA methods) with standard atmospheric refraction. Results are calculated for an ideal flat horizon at the city's coordinates, so local terrain, buildings, elevation, weather and unusual atmospheric conditions can shift what you actually observe by a few minutes. Treat times as close estimates, not guarantees.
How sunrise times are calculatedYes. Dayclipse is available for Android on Google Play and for iPhone on the App Store. Use the download buttons on this site to open the store listing.
Sunrise to moonset, golden hour to astronomical darkness — for cities worldwide, calculated on your phone.
