Civil Twilight Calculator
Welcome to the most detailed civil twilight calculator on the web. Determine the precise times for civil dawn and dusk, crucial for outdoor planning, photography, and aviation. Simply enter your location and date below to get instant, accurate twilight times.
Enter value from -90 to 90. North is positive, South is negative.
Invalid latitude.
Enter value from -180 to 180. East is positive, West is negative.
Invalid longitude.
Select the date for the calculation.
Civil Twilight Times
–:– | –:–
Sunrise
–:–
Sunset
–:–
Day Length
–h –m
Calculations are based on the sun’s geometric position relative to the horizon for the specified location and date. Civil twilight occurs when the sun is between 0° and 6° below the horizon.
| Phenomenon | Morning Start | Evening End | Duration (Each) |
|---|---|---|---|
| Civil Twilight (-6°) | –:– | –:– | — min |
| Nautical Twilight (-12°) | –:– | –:– | — min |
| Astronomical Twilight (-18°) | –:– | –:– | — min |