Summary
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Place details

The values in the Place tab are optional, and can be approximate without affecting the sundial's accuracy. They define the position of the horizon and make it possible to restrict the layout to the useful part of the sundial face: the times when the sundial will be in sunlight.

Enter the latitude of the location. If necessary, to improve this restriction, enter either the time of the Half-day (true midday: the time when the sun is directly overhead) or the Complete localization of the sundial: longitude and time zone.

Important:
o   The time of the half-day must be consistent with the times of the 2 shadow points (all in standard time or daylight saving time).
o   In the same way, the time zone must be associated to the hours used to record the shadow points or, more generally, to the sundial definition.

You can use Google maps to find the latitude and longitude:
o   Type the address in the Search box, or navigate to the sundial's location
o   Right-click on the marker that appears on the page and select What's here?
o   Google displays the geographical coordinates in the Search box in latitude, longitude form. The latitude is positive in the northern hemisphere and negative in the southern. The longitude is positive if the location is to the east of the Greenwich meridian, negative if it is to the west.

For the time zone, you should enter the time zone offset: the difference between your local time and UTC/GMT. Many sites list time zone offsets. See, for example, the bottom of the beautiful Wikipedia's world map. The difference is positive at the east of the Greenwich meridian, negative at the west. For daylight saving time add 1 hour. At the east of USA, for example, the value of the time zone is -5 for the standard time and -4 for the daylight saving time.

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