# Cosmic Clock — Sunrise & Twilight alarms

> Sunrise & Twilight alarms (iPhone/iPad app by Timothy Bowers.)

- Source: https://appshunter.io/ios/app/cosmic-clock/id1527726275 (this page in markdown: same URL + `.md`)
- Developer: [Timothy Bowers](https://appshunter.io/developer/928884270)
- Category: Weather, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 38 MB
- Languages: American English
- Released: 2020-08-14
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/cosmic-clock/id1527726275/reviews.md

## What is Cosmic Clock?

This app will send you an alert when the sun rises, or when the twilight hour starts.
You can choose between civil twilight, neutical twilight and astrological twilight.

Use this app to syncronise your circadian rhythm to sunrise or twilight hours.

You also have the option of adding the next sunrise, or twilight times on your calendar.


## Version history (last 2 releases)

### 1.1 — 2020-09-09

UI updates

### 1.0 — 2020-08-15

No release notes.

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [METAR](https://appshunter.io/ios/app/metar/id1597816936) | 4.6 (17) | Free | Weather |
| [Season Calendar](https://appshunter.io/ios/app/season-calendar/id1200344577) | 4.7 (17) | Free | Weather |
| [Weather App - Accurate Weather](https://appshunter.io/ios/app/weather-app-accurate-weather/id6443949924) | 4.8 (8) | Free | Weather |
| [Sunrise Sunset: Times & Alarms](https://appshunter.io/ios/app/sunrise-sunset-times-and-alarms/id6446035608) | 4.8 (188) | Free | Weather |
| [Moon & Sun: LunaSol](https://appshunter.io/ios/app/moon-and-sun-lunasol/id1518139990) | 4.8 (908) | Free | Weather |

## More apps by Timothy Bowers

- [Chatcees Messenger](https://appshunter.io/ios/app/chatcees-messenger/id928884271)
- [Guitar Lessons Pro](https://appshunter.io/ios/app/guitar-lessons-pro/id1076154638)
- [Tim Notes Blue](https://appshunter.io/ios/app/tim-notes-blue/id1281330770)
- [Battery Life Alarm & Reminders](https://appshunter.io/ios/app/battery-life-alarm-and-reminders/id1291735101)
- [Battery Life Alarm PRO](https://appshunter.io/ios/app/battery-life-alarm-pro/id1483995775)
- [Routine Me - Daily Habits](https://appshunter.io/ios/app/routine-me-daily-habits/id1505190738)

All apps by Timothy Bowers: https://appshunter.io/developer/928884270

## Related topics

[twilight alarm](https://appshunter.io/ios/topics/twilight-alarm) · [a civil twilight](https://appshunter.io/ios/topics/a-civil-twilight) · [diurna](https://appshunter.io/ios/topics/diurna) · [civil twilight for watch](https://appshunter.io/ios/topics/civil-twilight-for-watch)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*