About this app

A full solar position calculation done offline — no lookup, no network — giving sunrise, sunset, day length and solar noon for any coordinates, drawn as a gradient strip of the day with the current time marked. Handles the polar case correctly: try Tromso in midwinter and it refuses to return a sunrise, because there is not one.

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Win rates and risk grades are computed by Masterboard from tracked trade outcomes after the strategy is assessed — not self-reported by sellers. Past performance does not guarantee future results.