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Unix timestamp converter

Convert a Unix timestamp into a readable date, or a date into a timestamp, instantly. Supports seconds and milliseconds, shows both UTC and your local time, and displays the current epoch ticking live.

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How to use Unix Timestamp Converter

  1. 1

    Enter a value

    Paste a Unix timestamp in seconds or milliseconds, or type a normal date.

  2. 2

    Read the conversion

    See the timestamp and the date in seconds, milliseconds, ISO, UTC and local time.

  3. 3

    Grab the current epoch

    Copy the live current timestamp shown at the top whenever you need 'now'.

  4. 4

    Copy what you need

    Copy any of the formatted values with one click.

Unix time, made readable

Unix time — also called epoch time — counts the number of seconds that have elapsed since the first of January 1970 at midnight UTC. It is the way most computers, databases, APIs and log files store moments in time, because a single number is compact, unambiguous and easy to compare or do arithmetic on. The trouble is that a number like 1700000000 means nothing to a human reading it. This converter bridges that gap. Paste a timestamp and it instantly shows you the date and time it represents, in formats you can actually read, so you can make sense of a value pulled from a database row, an API response, a JWT, a cookie or a log line. Going the other way, you can enter a normal date and get back the timestamp a system expects. It removes the constant little friction of mentally translating between machine time and human time that anyone working with data runs into.

Seconds or milliseconds, handled automatically

One of the most common sources of confusion with Unix time is the unit. Classic Unix timestamps are measured in seconds, but many systems — JavaScript, lots of APIs and plenty of databases — use milliseconds instead, which makes the number a thousand times larger and three digits longer. Paste the wrong assumption into a naive converter and you get a date thousands of years off. In1 detects the scale for you: a ten-digit value is treated as seconds and a thirteen-digit value as milliseconds, so you usually do not have to think about it at all. It then reports the result in both seconds and milliseconds, so whichever unit the next system expects, you have the right number ready to copy. This automatic handling means you spend less time second-guessing whether a timestamp is off by a factor of a thousand and more time actually using the value.

UTC and your local time, side by side

A moment in time looks different depending on where you are standing, and that difference is a frequent source of bugs and misunderstandings. A timestamp stored in UTC might need to be read in your local zone, or a local date might need to be expressed in UTC for an API. In1 shows you both at once: the ISO 8601 form and the UTC string for the unambiguous, timezone-independent view that servers and standards use, alongside your browser's local time for the version that matches your own clock. Seeing them together makes it easy to reason about scheduling, expiry times, log correlation across regions, and any task where getting the timezone wrong has real consequences. You do not have to do the offset math in your head or open a separate world-clock tool — the converter lays out the same instant in the formats you are most likely to need, so you can copy whichever one fits.

The current timestamp, ticking live

Often you do not have a timestamp to convert — you just need the current one, right now, to drop into a test, a query, a config value or a piece of code. In1 shows the current Unix timestamp at the top of the tool and updates it every second, so the value is always fresh and ready to grab. A single click copies it. This sounds minor, but for developers it replaces a small ritual of opening a console and typing a command just to get 'now' as an epoch value. It is also handy as a reference point while you are converting other timestamps, letting you see at a glance whether a value is in the past or the future relative to the present moment. Because the clock runs entirely in your browser, it reflects your own device's time and keeps ticking whether or not you have a network connection. Copying the current epoch is then a one-click action, which is exactly what you want when you are filling in a value mid-task and do not want to break your flow to look it up elsewhere.

Who uses a timestamp converter?

The audience is anyone who works with time as data. Developers convert epoch values they see in databases, JSON responses, JWTs, cookies and HTTP headers into readable dates while debugging, and grab the current timestamp to use in code and tests. Site reliability and operations engineers correlate log entries across services by translating their timestamps and comparing them in a common timezone. Data analysts make sense of exported datasets where dates are stored as numbers. QA testers check that expiry and scheduling logic behaves correctly by reading the timestamps a system produces. API integrators line up their requests with the time formats a third-party service expects. Even non-developers occasionally need to decode a timestamp they have stumbled across in a file or a URL. For all of them, a converter that handles both directions, both units and both timezones — instantly and privately in the browser — turns an annoying mental conversion into a quick lookup.

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