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Tiny amount of UI feedback; I automatically wanted to click “cloud-synchronized” at the top to find out how it works technically, since the text is blue and I’d expect it to be a link.

May be better to just italicize or bold that rather than change the color. Or better yet, actually make it a link to a short “how does it work” page

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I'll do that, thanks. I've never had feedback that's indicated people wanted to know.

It uses NTP's clock synchronization algorithm to get the servers' time. This is done over a websocket as it's twice as fast as a typical ajax request/response. Then all changes are made using the browser's idea of server time.

At the bottom of the page, you can see your computer/phone's time offset and precision.

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