Why does TerraTime show a different sunrise and sunset time than ____________?
You may see slight differences between the sunrise/set times shown here and in other places, including what you might observe yourself. There are several reasons why this happens: • There are many different definitions of sunrise and sunset, mostly to do with just what part of the sun’s disc is (or is not) visible above the horizon. • You’ll find even more definitions of dawn and dusk; obviously, twilight is a subjective measurement, depending on many factors. In this app, I use nautical twilight to determin dawn and dusk times. • A difference in location of only a few miles can change the time by a minute or two. By default, TerraTime uses your approximate location, within about 5 miles, which is usually good enough. • The relative times are computed based on your phone’s clock, and while this is generally pretty accurate, it’s not perfect. Generally, it’s simply not possible to compute rise and set times with a high degree of accuracy, due to unpredictable variations in local conditi
