iPhone app Dawn Alarm

This app is an alarm that notifies at dawn, sunrise, sunset, and dusk.
If you would like to begin activities soon after sunrise, the app is most suitable.
The app can confirm sunrise, sunset, dawn, and dusk on a current position and main cities immediately.
And you can check the time of dawn, dusk, sunrise, and sunset even if you do not allow local notifications.

This app uses Japanese dawn and dusk which were established by a samurai (a shogunate employee), but there is almost the same civil twilight.
The civil twilight begins and ends when the suns geometric center is 6 below the horizon.
However, the dawn begins and the dusk ends when the suns geometric center is 7.3611 below the horizon.
If you turn on the civil twilight switch, the dawn, and the dusk will be civil dawn and civil dusk.

Exemption from Liability

ASTI will not be held liable for anything that transpires due to using this information.
No liability will be accepted for any damage, injury, or loss that may be suffered from using the app.,

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