Sol: Sun Clock for iPhone and iPod Touch by Juggleware

The Sun is a ancient timekeeper whose apparent cycles have governed life on earth for eons. Before digital clocks and wrist watches, we depended on the the light and position of the sun to tell time; yet we underestimate how much influence it still has on our lives and health.

Sol: Sun Clock is the Swiss army knife of sunlight tools with a design inspired by the simplicity of the sundial. Use it to plan your day, guide natural sleep cycles, plan the perfect photograph or to map out the best times to go fishing.

Overview

We developed Sol because no other app in the App Store could bring you clear information about the day's sunlight and let you set alarms that would repeat according to your schedule.

Be in tune: Sol will tell you how much sunlight you have left in the day or what time the next sunrise occurs.
Find solar midnight and solar noon, and all three twilight (dawn and dusk) periods: astronomical twilight, nautical twilight, and civil twilight. Keep tabs on the next solstice and equinox.
Reminders and Alarms: Use Sol as a natural alarm clock that you can set to any event (like sunset, golden hour or solar noon), and the alarm or reminder time will adjust gradually as the days change with the seasons.
Automatic Location: Sol not only calculates the amount of daylight and sunrise and sunset times, but does so for any location in the world (both Northern and Southern hemispheres) by using your device's GPS... no network connection required.
Other locations: Optionally, use the built-in map to choose any location in the world by moving the pin, or search using the name of any city.
Optional location-aware alarms. Sol knows when you change with your location; and as you travel it will adjust any alarms you set relative to sunrise and sunset times. Create alarms for multiple locations around the world.

Features

Unique feature: the only app with audible alarms you can use to set to
only app with sun timers that can be set to be repeatable or attached to a distinct day
Sol doesn't need to be running to cancel alarms
View solar periods of the day represented in 24-hour circle in zoom-out mode
Location-aware using your phone's GPS
Set manual location by moving pin on map or typing in city name
move wheel with thumb to see what the rest of the day will look like
tap on date to look at a different date
tap on time zone to pick a different time zone to use
tap on left and right arrows in toolbar to see previous and next sun events
tap on info ("i") button to see all today's times in a chart
tap on pin to change your location
tap on refresh button in toolbar to revert to present time and/or location
tap on settings button to hide twilight periods or adjust golden hour elevation
double-tap earth (green area) or pinch to zoom out and see 24-hour view
scrolling tickers show times until/since nearest daily event and equinox or solstice

Availability

Sol is now available on the App Store.

Suggested Uses

Great for:

Athletes, Joggers, Cyclists
Photographers and cinematographers
Fishing, hunting, boating
Parents and coaches
Farmers and gardeners
Students
Event and wedding planners
People with S.A.D. (Seasonal Affective Disorder)
Astronomers

Also useful for religious rites where the position of the sun is important; for example:

Muslims — Set an alarm for the 5 prayer times a day according to Islamic tradition; each prayer time is tied to the position of the sun.
Jews — Because traditionally in Judaism, a day begins and ends at sunset, rather than at midnight, the Sabbath actually begins at sunset on Friday. You might want to set a repeating alarm to repeat every Friday at sunset to remind you that the Sabbath had begun.

Support

Please check out our updated help file!
This is an expanded version of the help available in Sol 1.0 by pressing the (i) button in the upper right. This full version will be available in Sol 1.1.

If you still need support with Sol: Sun Clock, please contact us. Please give us as much detail as you can regarding your question, so we can build a FAQ.

The Story Behind the App

Interested why we made Sol:Sun Clock? Read Alec's entry about Sol on the dev blog.

Credits

Sol: Sun Clock was developed for Juggleware LLC by Alec Vance. Co-design/graphics by Josh Warren. Special Thanks to John Barousse and all the beta testers who gave us feedback.