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Dev tools · August 30, 2025

IM

I made a mini site to see timezone shifts

Hey HN. I made a micro site one recent evening to see upcoming (and recent past) timezone transitions. At my job, we have some timezone specific code where we often see spikes in metrics due to random timezone shifts around the world. Just for fun, I wanted a way to easily see where and what this timezone shift might have been, so built this mini site to do so. Its fully clientside and works by making use of the Internationalization API, so if you need an API for this you're coming to the wrong place, but feel free to yoink the code. Its just one fat index.html file. Served off my VPS via…

I made a mini site to see timezone shifts launched on August 30, 2025 with 8 votes, #2,487 of 8,530 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.

What it does

In the maker’s words, at launch

Hey HN. I made a micro site one recent evening to see upcoming (and recent past) timezone transitions. At my job, we have some timezone specific code where we often see spikes in metrics due to random timezone shifts around the world. Just for fun, I wanted a way to easily see where and what this timezone shift might…

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