DaylightGraph
Sunrise & Sunset, City by City
$1.99
Key Features:
・Full-year sunrise/sunset & solar noon altitude graphs
・Compare daylight across cities
・Pinch to zoom into specific dates & times
See a full year of sunrise and sunset, at a glance — as a graph.
Plenty of apps can tell you what time the sun rises today, but surprisingly few show you how that time changes over the course of a year. DaylightGraph plots a city's sunrise and sunset times as a simple line graph, so you can see the whole year's pattern at once.
■ Features
- Just type a city name — latitude, longitude, and time zone are found automatically
- Graph sunrise and sunset times over any period, up to a full year
- Also shows civil twilight and solar noon altitude (how high the sun climbs at midday)
- Pinch or use the +/− buttons to zoom in on a specific date or time
- Compare daylight across multiple cities, overlaid on the same graph
- Analyze custom conditions, like "how long does sunrise stay later than 6 AM?"
- Automatically detects and displays the midnight sun and polar night at high latitudes
- Supports countries and regions that observe Daylight Saving Time, with DST periods clearly marked
■ Who it's for
- Anyone checking how daylight hours change before a trip or business trip
- Photographers tracking golden hour and other seasonal lighting changes
- Anyone simply curious about the sun's yearly rhythm
Available on iPhone, iPad, and Mac.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Masato Nagamatsu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Masato Nagamatsu
- Size
- 1.1 MB
- Category
- Weather
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 15.2 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nashua Works

