Sundial+ Sun and Moon Times, Alerts, and Widgets

Plan your day and next adventure around the sun and moon
Track daylight and moon phases, catch golden hour, and wake with sunrise. Get alerts and widgets for iPhone and iPad. Plus, a full-featured Apple Watch app with a wide variety of complications.

Sundial+ on Apple Watch, iPhone, and iPad

Create alerts for 36 unique solar & lunar events • 40+ Home Screen and Lock Screen widgets • Apple Watch app with hundreds of complications

Sundial+ 101

Sundial+ provides a one-of-a-kind 24-hour display of the sun's and moon's rise/set cycles. As the seasons change, the yellow “sun is out” arc shows your precious daylight hours, which shrink during winter and expand as summer approaches. The white inner arc indicates when the moon is visible in the sky. The solar dial shows civil, nautical, and astronomical twilight in shades of blue.

Sundial+ is all about making it your own. Choose the data you see on the app's home screen, give an alert its own emoji and custom sound, pick which solar events appear in a widget, or put together the perfect set of complications for your Apple Watch face. Customize it to fit your needs and the way you spend your day.

Former Sundial user? Please see what's new in Sundial+, the Sundial Classic FAQ, and how to re-download Sundial.

Alerts That Follow the Sun and Moon

Create notifications or alarms for 36 unique solar and lunar events:

Sunrise, solar mid-morning, solar noon, solar mid-afternoon, sunset, and solar midnight
Civil twilight (dawn/dusk), nautical twilight, and astronomical twilight
Golden hour and blue hour (morning and evening)
Moonrise, lunar noon, moonset, and lunar midnight
Moon phases: full moon, new moon, first-quarter moon, last-quarter moon, and waxing or waning crescent and gibbous moons
Astronomical seasons: March equinox, June solstice, September equinox, and December solstice
Spring and fall equilux: the days near each equinox when day and night are closest to equal in length at your location

Sundial+ notification for civil dusk on iPhone

Sundial+ wake-up alarm on iPhone with snooze and stop controls

A reminder at just the right time. Get a notification at an event, or set an offset before or after it. A reminder before dusk can help you finish an outdoor activity while there is still light; one before golden hour can give you time to get your camera ready.

Wake up with the sun. Turn an event alert into an alarm to wake at sunrise, 15 minutes before it, or at your preferred offset from dawn or another solar or lunar event. The alarm follows the event as its time changes through the seasons, so you do not have to keep adjusting a fixed wake-up time.

Like alarms in Apple's Clock app, Sundial+ alarms on iPhone sound even when Silent mode or a Focus is active. Enable the optional snooze for a few more minutes of rest, or stop the alarm when you are ready to get up.

Some of the ways people use alerts:

A blind user is reminded to turn on the outside lights near dusk
A parent gets the kids inside before dark during the quickly changing winter months
A jogger times her morning run to perfect light, starting the day right
An astrophotographer uses Sundial+ to plan the perfect shot
A farmer uses Sundial+ to let her hens in and out of their pen around twilight, and grab a good night's sleep herself at the end of nautical twilight
A surfer has his sunset "catch a wave" reminders
An Ashtanga yoga practitioner is reminded to take rest before the new moon and full moon
A Red Cross volunteer keeps tabs on the setting sun
A Buddhist monk is notified on the sunset two days before the full moon to shave his head the next morning
A photophobia sufferer sets an alarm 30 minutes before sunset to head home for the day because driving at night is impossible

Home Screen Widgets

Bring Sundial+ to your Home Screen! There are 15+ fun widgets, most of which are configurable.

Lock Screen Widgets

Put Sundial+'s advanced sun and moon tracking on your Lock Screen. There are 30+ unique widgets, all of which are configurable.

Apple Watch App & Complications

The Sundial+ Watch app gives you access to all of Sundial+'s solar and lunar data on the go, calculated directly on your wrist without cellular data or your iPhone.

Choose which solar and lunar data to display with Sundial+ Watch's swipeable, configurable widgets. Move and rearrange them to suit your needs.

There are hundreds of different complication options, including Sundial+'s unique rise/set time dials.

Travel to Any Time & Location

You can travel to any date and custom location with a Sundial+ subscription, making Sundial+ a handy tool when planning a vacation or an outdoor activity. And time travel is just plain fun: swipe around the dials to move forward and backward, or press and hold the left or right side of the screen to experience the changing seasons at warp speed.

Pricing & In-App Purchase

The core iPhone and iPad app is free to use. It displays the solar and lunar cycle in Sundial+'s unique 24-hour ring. Times for today's sunrise, solar noon, sunset, moonrise, lunar noon, and moonset are calculated on your device. Use time travel to review times for up to ±5 days.

A Sundial+ subscription unlocks extended features in the Sundial+ iPad and iPhone app:

Customize your Sundial+ home screen: tailor what data you want to see.
Create alerts for 36 unique solar and lunar events.
Unlimited time travel.
Search and jump to any location on Earth.
40+ configurable widgets for your Home Screen, Lock Screen, and StandBy.
Full-featured Apple Watch app with hundreds of complication and widget combinations.
Many other geeky features.

Privacy and Terms

Sundial+ requests your location to calculate precise solar and lunar data for you. This location is not shared with us or any third party; it is cached only on your device and may be backed up through Apple's iCloud backup. See our privacy policy and terms of use for complete details.

About the Developer & Contact Information

Howdy! I'm Mike Muegel, the author of Sundial+. I'm an independent software engineer living in Austin, Texas. Sundial+ is the evolution of Sundial, an app I first released in 2015 (!!!). Sundial+ is a completely new app, rebuilt from the ground up for today's Apple devices, including iPhone Duo.

Please don't hesitate to contact me if you would like more information about Sundial+. Or check out the press kit.