The Threshold
Sunrise
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Sunset
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Next threshold in
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Alerts
Off
Civil
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Nautical
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Astronomical
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Use the Threshold well
The Threshold gives you accurate sunrise and sunset times so you can arrive twenty minutes early, stay twenty minutes after, and build the practice around an actual horizon instead of a rough guess.
If this is your first time here, read the full practice instructions. If you want the larger context, visit About or the founder page.