Hey Product Hunt 👋 I'm Arthur, the maker of zonestamp.one. This started as a personal itch: I was tired of googling "convert UNI X timestamp to EST" every time I read a database log. The tool is intentionally simple: → Paste a timestamp → Pick a timezone → Done. But under the hood it handles edge cases properly — auto-detecting seconds vs milliseconds vs microseconds, h andling DST transitions correctly via the browser's Intl API, and supporting all 400+ IANA timezones. Three design choices I'd love feedback on: 1. **Privacy by default.** No server, no tracking. Is that a selling point or do most users not care? 2. **The dark UI.** I went with a muted dark theme (OKLCH color space). Too niche or just right for dev tools ? 3. **SEO-driven sub-pages.** There are 250+ dedicated pages for specific timezones and countries (e.g. /timez one/cst/, /country/jp/). Useful or overkill? This is completely free, no account needed. I'm not monetizing it — just wanted to make something clean and f ast. Happy to answer any questions or take feature requests!

Timestamp to Timezone

Convert UNIX timestamps to any timezone instantly

Convert UNIX timestamps to any timezone instantly