Dawn Alarm
Life Rhythm under Sunlight
FreeOffers In-App Purchases
1.6for iPhone, iPad and more
Age Rating
Dawn Alarm Screenshots
About Dawn Alarm
This app serves as an alarm that provides notifications at dawn, sunrise, sunset, and dusk. If you wish to commence activities shortly after sunrise, this app is an excellent choice. It offers the capability to determine the timing of sunrise, sunset, dawn, and dusk for your current location and major cities instantly. Moreover, you can access this information even if you haven’t allowed local notifications.
The app employs Japanese definitions for dawn and dusk, which were established by a samurai during the shogunate era, although they closely resemble civil twilight. Civil twilight commences and concludes when the sun’s geometric center is 6° below the horizon. In contrast, dawn starts and dusk ends when the sun’s geometric center is 7.3611° below the horizon. Enabling the civil twilight option will make the dawn and dusk correspond to civil dawn and civil dusk.
■ Liability Disclaimer
ASTI disclaims all liability for any consequences arising from the use of the app. We accept no responsibility for any damages, injuries, or losses resulting from app usage.
The app employs Japanese definitions for dawn and dusk, which were established by a samurai during the shogunate era, although they closely resemble civil twilight. Civil twilight commences and concludes when the sun’s geometric center is 6° below the horizon. In contrast, dawn starts and dusk ends when the sun’s geometric center is 7.3611° below the horizon. Enabling the civil twilight option will make the dawn and dusk correspond to civil dawn and civil dusk.
■ Liability Disclaimer
ASTI disclaims all liability for any consequences arising from the use of the app. We accept no responsibility for any damages, injuries, or losses resulting from app usage.
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What's New in the Latest Version 1.6
Last updated on Oct 26, 2023
Old Versions
- Supported iOS 17.
- Added a culmination time display function.
- Added a location update function.
- Improved user interface.
- Added a culmination time display function.
- Added a location update function.
- Improved user interface.
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Version History
1.6
Oct 26, 2023
- Supported iOS 17.
- Added a culmination time display function.
- Added a location update function.
- Improved user interface.
- Added a culmination time display function.
- Added a location update function.
- Improved user interface.
1.5.6
Oct 24, 2022
- Supported iOS 16.
- Supported Split View.
- Supported Split View.
1.5.5
Jul 9, 2022
- Added a function to remove ads.
1.5.4
Oct 20, 2021
- Supported iOS 15.
1.5.3
Jun 1, 2021
- The final version to support iOS 9–11.
1.5.2
Mar 9, 2021
- Fixed bugs.
1.5.1
Feb 4, 2021
- Fixed bugs.
1.5
Dec 22, 2020
- Supporter iOS 14.
- Improved user interface.
- Improved user interface.
1.4.5
Oct 6, 2019
- Fixed a bug.
1.4.4
Oct 5, 2019
- Fixed activity indicator color.
1.4.3
Oct 4, 2019
- Supported iOS 13.
- Supported Dark Mode.
- Supported Dark Mode.
1.4.2
Oct 24, 2018
- Supported iOS 12.
- Added a function which can set number of alarm times.
- Added a function which can set number of alarm times.
1.4.1
Jul 9, 2018
- Added “Keep Alarm Switches“ switch.
- Revised World Cities.
- Revised World Cities.
1.4
Nov 17, 2017
- Support for iOS 11.
- Support for iPhone X.
- Support for iPad.
- Support for iPhone X.
- Support for iPad.
1.3.2
Apr 19, 2017
- Improved icons.
- Fixed bugs.
- Fixed bugs.
1.3.1
Apr 8, 2017
- Improved to set location with Map.
1.3
Apr 3, 2017
- Supporter iOS 10.
- Added a function which displays local time.
- Improved to be able to set a position on the map.
- Improved notation.
- Added a function which displays local time.
- Improved to be able to set a position on the map.
- Improved notation.
1.2.4
Apr 26, 2016
- Fixed a bug.
- Added a new sound.
- Added a new sound.
1.2.3
Dec 7, 2015
- Fixed a bug which occurs when you use 12-hour time in Japanese.
1.2.2
Oct 21, 2015
- Fixed a bug that the dawn and the dusk icons are reverse.
1.2.1
Oct 1, 2015
- Fixed a bug that sample sound does not stop immediately.
1.2
Sep 22, 2015
- Supported iOS 9.
1.1
Mar 14, 2015
- Added a switch which changes the definition of Japanese twilight to civil twilight.
- Added a function which can set offset time (minutes).
- Fixed a bug.
- Added a function which can set offset time (minutes).
- Fixed a bug.
1.0
Feb 17, 2015
Dawn Alarm FAQ
Click here to learn how to download Dawn Alarm in restricted country or region.
Check the following list to see the minimum requirements of Dawn Alarm.
iPhone
Requires iOS 12.0 or later.
iPad
Requires iPadOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.
Dawn Alarm supports English, Japanese
Dawn Alarm contains in-app purchases. Please check the pricing plan as below:
Remove Ads
$1.99