Is My Input Uploaded?

Astronomy is calculated locally. Device location is requested only when you press Use My Location; you can enter coordinates manually instead.

Can I Save The Result?

Download a text or PDF plan, or export sunrise, sunset and golden-hour boundary events as an ICS calendar. Events use UTC so calendar applications can display their own local time zones.

Sun & Moon Sunlight Planner

Plan sunrise, sunset, twilight and golden-hour windows with moon illumination and calendar exports.

Location & Date

Location Preset

Latitude

Longitude

Starting Date

Days To Plan

IANA Time Zone

Observer Height Above Horizon (m)

Choose a valid date.

Sunlight & Lunar Phase

All times show the chosen zone, with daylight saving applied. The selected date is the location’s solar day; lunar illumination is sampled near local solar noon. Polar events may not occur.

Multi-Day Plan

Planning estimates from SunCalc 2.0.2. Terrain, atmospheric refraction, elevation and weather affect actual visibility. Not for navigation, religious observance or safety-critical decisions. Coordinates stay in your browser; device location is requested only when you choose it.

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What Is the Sun & Moon Sunlight Planner?

Plan sunrise, sunset, twilight and golden-hour windows with moon illumination and calendar exports.

How It Works

Choose a date, coordinates and an IANA time zone. Use a city preset or explicitly share your device location. Compare up to 30 days and export text, PDF or UTC calendar events. These are astronomical estimates, not weather forecasts; terrain and atmospheric conditions affect observed times.

When to Use It

Planning outdoor photography, filming and daylight activities. Estimates are not intended for navigation or safety-critical decisions.

Frequently Asked Questions

Is My Input Uploaded?: Astronomy is calculated locally. Device location is requested only when you press Use My Location; you can enter coordinates manually instead.
Can I Save The Result?: Download a text or PDF plan, or export sunrise, sunset and golden-hour boundary events as an ICS calendar. Events use UTC so calendar applications can display their own local time zones.

Found an issue? Send Feedback. See our data sources and update policy for tools that depend on changing information.