Epoch & Unix Timestamp Converter Online
Convert Unix timestamps to human-readable dates — and dates back to epoch time — instantly with this free online timestamp converter. Paste any value and the tool auto-detects whether it is seconds, milliseconds, or nanoseconds, then shows the moment in both your local timezone and UTC, alongside a live ticking epoch clock.
Unix time (seconds since January 1, 1970 UTC) is how computers timestamp everything: database rows, API responses, JWT expiry claims, log lines, and cache headers. Reading raw epoch values is impossible for humans, and the seconds-versus-milliseconds ambiguity trips up even experienced developers — this converter resolves both problems at a glance.
How to Convert a Unix Timestamp
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Paste the timestamp
Drop in any epoch value — 10-digit seconds, 13-digit milliseconds, or 19-digit nanoseconds are detected automatically.
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Read the date
See the human-readable date and time in your local timezone and in UTC simultaneously.
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Convert the other way
Pick a date and time to get its epoch value for queries, API calls, and test fixtures.
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Grab the current epoch
The live clock shows the present Unix time, ready to copy.
Features of the Timestamp Converter
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Auto-detects the unit
Seconds, milliseconds, and nanoseconds are recognized from the digit count — no unit guessing.
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Two-way conversion
Epoch to date and date to epoch in the same tool, for both debugging and query-building.
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Local and UTC together
Both representations side by side kills the classic timezone confusion in log analysis.
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Live epoch clock
The current Unix timestamp ticks in real time — copy it whenever you need 'now'.
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Instant and private
All conversion happens in your browser with zero network calls.
Frequently Asked Questions
What is Unix time / epoch time?
The number of seconds elapsed since 00:00:00 UTC on January 1, 1970 (the Unix epoch), ignoring leap seconds. It is the universal machine format for points in time because it is a single unambiguous integer, independent of timezones.
Is my timestamp in seconds or milliseconds?
Count digits: current timestamps have 10 digits in seconds (e.g. 1783468800) and 13 in milliseconds. JavaScript's Date.now() returns milliseconds; most Unix tools and APIs use seconds. This converter detects the unit automatically.
What is the Year 2038 problem?
Systems storing Unix time in a signed 32-bit integer overflow on January 19, 2038, wrapping to 1901. Modern 64-bit systems and databases are unaffected, but legacy embedded systems and old schemas may need migration.
How do I get the current Unix timestamp in code?
JavaScript: Math.floor(Date.now() / 1000). Python: int(time.time()). In a shell: date +%s. SQL (Postgres): extract(epoch from now())::bigint. Or copy it from this page's live clock.
Why does my converted date look off by a few hours?
Timezone. Epoch values are always UTC; your tools may render them in local time. This converter shows local and UTC side by side so you can see exactly which representation you are looking at.