Timestamp Converter

Paste a Unix timestamp (seconds or milliseconds), an ISO 8601 string, or any date-string your browser can parse — get all the other formats back instantly. Pick a timezone from common IANA zones plus your browser default. See relative time ('3 hours ago') against the current moment, which ticks live. Runs 100% in the browser with no network call.

Now:1776740428·1776740428333·2026-04-21T03:00:28.333Z

Input (Unix seconds, milliseconds, ISO 8601, or date string)10 / 100,000

Timezone

Detected as: Unix seconds

Relative

0 seconds ago

Unix seconds

Unix milliseconds

ISO 8601 (UTC)

In selected timezone (America/New_York)

UTC (RFC 2822)

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About Timestamp Converter

Convert between Unix epoch (seconds/ms), ISO 8601, and human-readable dates. Timezone picker, relative time, and 'Now' buttons included. This tool runs entirely in your browser — no data is sent to any server. Your content stays private and secure. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.