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Timestamp Converter

LiveDeveloper Utilities

Timestamp Converter is a free, all-in-one date and time tool for developers. Convert Unix timestamps (seconds and milliseconds) to human-readable dates, convert any date to a Unix timestamp, see ISO 8601, RFC 2822, and UTC formats side by side, view relative time ('3 hours ago'), compare across multiple timezones, and use the live now-clock as a quick reference. Supports pasting any common date format and auto-detecting it. Everything runs client-side — no data leaves your browser.

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Output Summary

Export and sharing workflow optimized for web content formats.

Key Features

Unix timestamp (seconds) to human date conversion
Unix timestamp (milliseconds) to human date conversion
Human date to Unix timestamp conversion
ISO 8601, RFC 2822, and UTC format output
Relative time display (e.g. '3 hours ago', 'in 2 days')
Live now-clock with current timestamps
Multi-timezone comparison (UTC, local, and popular zones)
Auto-detect input format (Unix, ISO, date string)
One-click copy any output format
100% client-side — no data sent to any server
Dark mode and light mode with responsive layout

FAQs

What does the Timestamp Converter do?

It converts Unix timestamps (seconds or milliseconds since January 1, 1970) into human-readable dates, and converts human-readable dates back into Unix timestamps. It also shows the result in multiple formats: ISO 8601, RFC 2822, UTC, and relative time.

What is a Unix timestamp?

A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC. It is widely used in programming, databases, APIs, and log files to represent points in time as a single number.

Does it support millisecond timestamps?

Yes. The tool auto-detects whether your input is in seconds (10 digits) or milliseconds (13 digits) and converts accordingly. You can also manually toggle between seconds and milliseconds mode.

Can I see timestamps in different timezones?

Yes. The tool shows the converted date in UTC, your local timezone, and several popular timezones (US Eastern, US Pacific, London, Tokyo, Sydney, Dubai, etc.) so you can compare across regions.

Is my data safe?

Yes. All conversions happen 100% in your browser using the JavaScript Date API and Intl.DateTimeFormat. No data is ever sent to a server.

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