Breaking Dawn Alarm vs Sunsync

You can set alarms for dawn, sunrise, sunset, and dusk. Each alarm can have an offset, repetition, label, and sound. Offset allows you to adjust the time when the alarm sounds. I want to wake up by ringing 5 minutes before dawn. I want to ring it 30 minutes before sunset to get ready to go home. I want to ring it 16 hours after sunrise to signal bedtime. You can create alarms such as. You can repeat the alarm by specifying the day of the week. If you select Monday, the alarm will ring at the specified time every Monday. If you select all days of the week, the alarm will ring at the specified time every day. Labels can be used to name each alarm. The type of dawn, offset time, and repetition will be displayed without any special settings. You can select the sound or song for when the alarm sounds. On the sound selection screen, there are items for notification time and number of notifications. The notification time is the time the sound continues to play for up to 30 seconds. You can also set the length of each sound to be between 3 seconds and 30 seconds. If you select a song, it will be fixed at 30 seconds (maximum number of seconds for notification). The number of notifications is the number of times the alarm will be issued, up to 10 times. It can ring for up to 300 seconds with notification time of 30 seconds x number of notifications 10 times. Display the earliest notification time on the app icon badge. *Please allow location information. Uses location information to calculate time. By allowing “always” It is possible to update the time in the background. *Please allow notifications. While the app is in the background Update dawn, sunrise, sunset, and dusk times. *Please leave the app waiting in the background without forcing it to close. In this state, dawn, sunrise, sunset, and sunset times are updated daily. Or by launching the app, those times will also be updated.

View and be notified of solar times--dawn, sunrise, sunset, and more! Have the accuracy of NOAA in your pocket--the times are as accurate as NOAA's online calculator with some modest improvements for solar noon and match timeanddate.com to within 1-2s. Keep your day in sync with the sun! - See times from all over the world and on any date! - Schedule a notification just once or be notified on a recurring schedule - Display a clock to visually see how near a solar time is - No or spotty internet connection? No problem. The app still functions. Offline Mode Features and Caveats With no internet connection, the app will still work, but it will need to be connected to the internet again every few days for recurring notifications to continue working automatically. If that is not possible, the user can manually make them continue to work by flicking the switch to turn them off and then on again every few days. If a user wants to create a new location while lacking an internet connection, the user can create a location using latitude and longitude coordinates, using the convention that negative values are South of the equator and West of the Prime Meridian. The location created while offline will lack timezone information to display the times to the user in the local time of that location, but otherwise, everything works as expected. When the user comes back online, the app will automatically attempt to update the location with a name (if a match can be found) and timezone. If multiple locations match to the same place, the app automatically deletes all but one of them--no duplicate locations are permitted. Clock View The user can turn on the clock view from time settings. The clock view will display the time of the event that is selected and the user's current time on the hands of a clock and will update as the user taps more events. Tap and hold one of the time events to make the clock view display that event's time without popping up the notification creation form. The color of the event's clock hand changes depending on whether the event time is AM or PM. Limitations The algorithm used comes from Jean Meeus' Astronomical Algorithms and will be accurate to within a minute for most latitudes (+/- 72 degrees, i.e., up to around the Polar Circles) and within 10 minutes otherwise. Due to atmospheric refraction and other conditions, the calculated times may be different from what is observed. The algorithm is very good from the years 1800-2100 with still reasonable but decreasing accuracy from the years -1000 to 3000. The algorithm has a higher risk of error outside that range.