Here you will find a helpful programme that allows you to calculate the zone time (e.g. CET or CEST) from the true local time read from the sundial.

To enable us to determine your location, please allow us (www.helios-sonnenuhren.de) to access your location in the dialogue box. It is best to access the page on your mobile phone, as this will determine your exact GPS coordinates. The data obtained on a PC is not quite as accurate.