Who says time zones and encoding can’t be fun? Martijn kicked off i18n-puzzles.com—twenty daily challenges in March 2025 inspired by Advent of Code, tackling everything from UTF-8 treasure hunts to fixing RTL text scams. Over 300 coders worldwide joined in to wrangle time zone databases and dissect tricky Unicode quirks.
Now it’s time to peek under the hood: what clever tricks did people invent? Martijn’s talk dissects the best solutions, compares how Java, JavaScript and other languages handle internationalization, and dives into advanced Time Zones and Unicode code snippets.
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