Sundial, local times, time zones

Time zones were introduced at the end of the 19th century, before then time was synced with the position of the sun. Since the earth's axis is inclined towards the sun, "KEEP GOOD TIME" does not use the position of the sun, but the longitude of your position.


Implementation of design and programming, created e.g. with SwiftUI, released for iOS and watchOS.

Find "KEEP GOOD TIME" on the App Store
© 2020 Robin Falko||