Examples for

Sunrise & Sunset

The Sun usually rises and sets each day in a given location, but the circumstances and times of sunrise and sunset can be quite complicated. Explore the variations in sunrise and sunset times using Wolfram|Alpha. In polar regions, the Sun may not rise or set for months, bringing on a midnight‐Sun scenario or polar night. Since sunrise and sunset are determined visually, the actual times can vary depending on local environmental factors, such as atmospheric pressure. In addition, as the Earth orbits the Sun and is tilted on its axis, the times of both events vary throughout the year.
Sunrise & Sunset

Compute the time of sunrise and sunset, which depends both on the date and the location.

Compute sunrise/sunset times:

sunrise
sunset

Compute sunrise/sunset times for a specified date:

sunrise on January 31, 2005
sunset on September 9, 1991

Compute sunrise/sunset times for a specified location:

sunrise Boston
sunset in Seattle

Compute sunrise/sunset times for a specified date and location:

when is sunrise on Feb 4, 2018 from Boston
time of sunset on July 16, 2014 from Seattle
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