Location-aware tool

Location Sleep Calculator

Use your device location to estimate today's sunrise and sunset, then plan a bedtime around a sunrise wake-up.

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Plan around local daylight

Location has not been requested.

Your coordinates are used in your browser for this calculation. This tool does not need a paid location or weather API.

What does location change?

Sunrise and sunset change with latitude, longitude, season and date. This tool calculates approximate solar times locally in your browser.

Sunrise is not automatically the best wake-up time for everyone. Work schedules, individual sleep needs and other factors still matter.

Calculated solar times are approximate and can differ from observed conditions because of terrain, elevation, atmospheric conditions and local clock conventions.