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Vertical sundial
Willemstad
This sundial is on the renovated property at the old inland port of Willemstad since 1979.
It was milled into Perspex and then painted, and measures approximately 1.5m x 1.5m.
Around it is a heavy wooden frame.
There are three sundials.
The top sundial is a nodus dial for Italian hours, counted as hours until sunset.
There are seven date lines, corresponding to the twelve signs of the zodiac.
The pattern in the middle indicates Central European Time. The gnomon is a style triangle.
The style has an index, indicating the beginning of the four seasons on three date lines.
Below and to the right is a noon marker with an equation-of-time loop, which uses the tip of the style triangle as index.
To the lower left are the prettily coloured Willemstad coat of arms and the town’s motto:
Fortitudo mea Deus (God is my strength).
To the bottom far right are the initials of the maker (TdV) and the year 1979.