Every calculation on SkyRhythms — moon phases, sun times, golden hour, market statistics — runs entirely in your browser. Your birthday, your coordinates, and your location (if you grant the browser prompt) never leave your device. There are no accounts, no forms, and no analytics identifying you.
The golden hour calculator can use your device's location only if you explicitly grant permission. That reading is used in-memory to compute sun times and is never transmitted or stored.
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Last updated: 2026-09-19.