Contact
Report a wrong time, suggest a city or a feature, or just say hello. Messages go straight to the site’s inbox; we read all of them.
If a time looks wrong
Please include the place (or its coordinates), the date, the time the site showed and the time you expected or saw. Hills, buildings and weather can hide the sun a few minutes before the calculated time, but a difference of more than two or three minutes on a clear, flat horizon is worth reporting.
What we do with messages is described in the privacy policy.