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Mashup Score: 19United States standard time zone boundaries, 1919 to present - 25 day(s) ago
I spent the last month mapping time zone boundaries in the United States – not just the present-day boundaries, but also all of their previous versions, going all the way back to when the federal government began regulating timekeeping in 1919. In total, I’ve mapped 130 versions of nine time zones. As far as I know, OpenHistoricalMap might be the first comprehensive source of historical U.S. time zone boundary data on the Internet, and by far the most detailed. Time zone boundaries don’t show u…
Source: forum.openhistoricalmap.orgCategories: General Medicine News, NeurologyTweet
RT @SaveStandard: Evolution of US time zones from 1919 to 2024, by Minh Nguyen. More info at: https://t.co/WE7XkJ0mES https://t.co/unix7qBQ…