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What to include

If you're reporting a wrong result, include the exact inputs you used (dates, times, zones), what the tool showed, and what you expected — that's usually enough to reproduce and fix it quickly. For display problems, the device and browser you're using helps.

Suggestions

The site grows one small, single-purpose tool at a time. If there's a time or date question you keep having to work out by hand, describe it — the best tool ideas come from exactly that kind of repeated annoyance.