Tristan Hotham

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Land, sea and sky

How Wrong Is Your Clock?

For 76% of the world's people the clock runs ahead of the sun: the gap everywhere, and why winter mornings in Galicia stay dark until after nine.

How Wrong Is Your Clock?: preview of the interactive map

This is an interactive data study by Dr Tristan Hotham, built from open data. The map runs in your browser: explore it, search for places and switch layers. The write-up explains the method and what the data shows, and the data and code are open for anyone to reuse.

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