The Unix Timestamp Converter translates between Unix timestamps and human-readable dates across multiple time zones. A Unix timestamp counts the seconds (or milliseconds) since the epoch, 1 January 1970 UTC, and is the universal way software stores and exchanges points in time — in databases, log files, APIs and JWT expiry claims. This tool auto-detects whether your value is in seconds or milliseconds and shows the corresponding date in UTC, São Paulo time and your browser’s local zone, along with ISO 8601 and RFC 2822 strings. A live mode ticks the current timestamp second by second, and the Now button captures the present instant for quick reference.
How to Use the Timestamp Converter
- Paste a Unix timestamp into the input — seconds and milliseconds are detected automatically.
- Read the converted date in UTC, São Paulo and your local time zone, plus ISO 8601 and RFC 2822.
- Press Now to grab the current timestamp, or enable Live to watch it update every second.
Benefits and Use Cases
- Indispensable for developers debugging logs, database records and API responses that store time as Unix epochs.
- Shows several time zones at once, eliminating manual offset math when comparing events across regions.
- Works fully offline in your browser using the built-in Intl API — no data is ever sent anywhere.