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Suntimes - Android app (and widget collection) that displays sunlight and moonlight times for a given location.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
SunIZup - SunIZup helps you to know the timings of the various Sunlight phases including the Golden Hour and...
Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.
Natural Hour - A roman timekeeping add-on for Suntimes.
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...