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Unix timestamp converter

Convert dates and time zones for meetings, releases and calls with people abroad.

PrivateNo uploadsRuns in your browser

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Unix time now

Type a timestamp or date, pick one from the calendar, or press Use now.

A programmer looking at code on his laptop

For dates hidden in numbers

Turn a long number into a real date

Late night bug. The log says 1700000000. Now it says a real day and time.

BeforeCount seconds in your head or guess

With sdevPaste the number, read the date

  • Travellers on a long airport walkway

    Across time zones

    The meeting time is clear in his city and in yours.

  • A father hugging his young child outdoors

    Home on time

    The answer came fast. The evening is free.

How to convert a timestamp

  1. Enter a value

    Type a Unix time, an ISO string or a dd/mm/yyyy date, or press Use now to load the current time. The Pick a date field opens your browser's own date and time picker.

  2. Pick a zone

    Choose the zone you want the date shown in. Your own zone is selected on load, and the Local row stays in the table whatever you pick.

  3. Copy the result

    Each row has a copy button. Ctrl+C (Cmd+C on a Mac) with nothing selected copies the whole table as label: value lines.

Good to know

  • Click the large ticking number at the top to copy the current Unix time in seconds.
  • Decimal seconds such as 1758867200.5 are accepted. Only the digits before the point decide the unit.
  • The ISO row for the chosen zone carries its offset, for example +05:30, so it can be pasted straight into logs and API calls.
  • Day of year and ISO week (W01 to W53) are calculated in UTC, which is how most systems define them.
  • The Relative row (in 3 hours, 2 days ago) and the clock refresh every second.
  • Everything runs in your browser. Nothing you type is sent anywhere.

Where people use it

  • Read a time in a log

    Paste a number from a log or database and see the real date and time.

  • Make a timestamp for an API

    Type a date and copy the Unix seconds or milliseconds.

  • Work across time zones

    See the same moment in IST, UTC or any other zone.

  • Plan a scheduled job

    Check when a cron schedule will run next.

    Cron expression parser and editor

Why this one

It guesses the unit for you and shows every common format at once, plus relative time, day of year and ISO week.

  • Knows seconds, milliseconds, micro and nanoseconds by itself.
  • Any time zone, with ISO 8601 and RFC 2822 formats.
  • Live clock with the current Unix time.
  • Runs in your browser.

What you can change

  • Time zone
  • Input as number or date
  • Output format

People find this page by searching

  • unix timestamp converter
  • epoch converter
  • timestamp to date
  • date to timestamp
  • epoch time now
  • milliseconds to date
  • unix time to ist
  • convert timestamp to time zone
Cite this tool
  • APA
    sdev.in. (n.d.). Unix timestamp converter [Web tool]. https://www.sdev.in/tools/timestamp-converter
  • MLA
    "Unix timestamp converter." sdev.in, https://www.sdev.in/tools/timestamp-converter.
  • Chicago
    sdev.in. "Unix timestamp converter." https://www.sdev.in/tools/timestamp-converter.
  • BibTeX
    @misc{sdev-timestamp-converter,
  title = {Unix timestamp converter},
  author = {{sdev.in}},
  howpublished = {\url{https://www.sdev.in/tools/timestamp-converter}},
  note = {Web tool}
}

Questions people ask

How does it know whether a number is seconds or milliseconds?

By the number of digits. Up to 11 digits is read as Unix seconds, 12 to 14 as milliseconds, 15 to 17 as microseconds and anything longer as nanoseconds. The Read as line under the box tells you which one it picked.

Which date formats can I paste?

ISO 8601 such as 2026-09-26T08:00:00Z, RFC 2822, any string JavaScript's Date.parse understands, and day-first dates like 26/09/2026 14:30 or 26-09-2026. The word now also works.

What zone is a pasted date read in?

A string with a Z or an offset is exact. A string without one, including dd/mm/yyyy, is read in your browser's zone, except date-only ISO strings like 2026-09-26, which JavaScript treats as UTC midnight. Add a time or an offset if that matters.

Does the Zone menu change how the input is read?

No. It only changes the zone the result rows are shown in. The list comes from your browser, so it includes every IANA zone your system knows, and the row label shows the UTC offset in force at that instant, with daylight saving applied.

Can I convert a date into a timestamp?

Yes. Type or pick a date and read Unix seconds and milliseconds from the table. Dates before 1970 give negative values, and negative timestamps are accepted as input too.

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