My Michigander friends always mention the late night sunsets. Michigan sits north in the country and west in its time zone—U.S. Eastern—so its naturally late summer evenings fall especially high on the clock. 10 p.m. in Boston is 10 p.m. in Grand Rapids, even if the sun passed over Massachusetts long ago.

That’s when you can go outside, they say, and it’s bright enough to picnic.

Now, Google engineer Stefano Maggiolo has visualized what this difference looks like around the world—how solar time lags behind or marches in front of the time on the clock. It’s a rare look at the rhythm of the day—measured and made uniform by technology—affects communities around the world.

Here’s the map; you can see the full version on Maggiolo’s blog. Red indicates that solar time follows standard time, and green indicate solar precedes the standard.

Stefano Maggiolo

Of course, the reasons for standardization are often as sociological as they are technological—and their effects wind up redounding beyond their intent. As Joshua Keating writes at Slate, Spain standardized on central European time during Franco’s reign. This, in turn, led to later schedules in Spain, and to the nation’s famously nocturnal suppers.