Conversor de Marca Temporal

About this tool

Timestamp converts between Unix timestamps (seconds or milliseconds since the Unix epoch) and human-readable dates in your local timezone. It supports ISO 8601, RFC 3339, and the common log format, and it can show the same instant in every IANA timezone so you can see at a glance what time it is in Tokyo when it is 3pm in Berlin. The page also reports the day of the week, the week-of-year, and the day-of-year — useful for log analysis. Conversions are local to your browser, so the 'human-readable' output reflects the timezone your computer reports.

When to use it

• Decoding a Unix timestamp from a log line or a database column
• Converting a wall-clock meeting time from your timezone to a colleague's in another zone
• Generating a Unix timestamp to paste into a `date -d @...` command on a server
• Verifying that two timestamps from different systems refer to the same instant

When not to use it

• You need to work with non-Gregorian calendars — the tool handles the Gregorian calendar only
• You need sub-second precision beyond milliseconds — Unix timestamps are reported in seconds and milliseconds; microseconds are not represented
• You need historical timezones with DST rules from before 1970 — the IANA database covers modern history with high accuracy but the rules before Unix epoch are best-effort

Frequently asked questions

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