The Yearlight Calendar is a poster displaying the duration of daylight, twilight, darkness, and moonlight each day of the year. Because these durations vary widely depending on your location, the calendar is site-specific, and must be made to order.

Unlike most calendars, the Yearlight Calendar registers the fundamental experience of time: the movement of the sun and moon relative to your horizon.

To recieve updates like us at facebook.com/YearlightCalendar
More info at yearlightcalendar.com

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