Developer Tools
Live

Timestamp Converter

Convert between Unix timestamps and human-readable dates in any timezone.

Convert between Unix timestamps and human-readable dates in any timezone.

Quick start: Paste a Unix timestamp (in seconds or milliseconds) to convert it to a readable date and time. → Or pick a date and time with the picker to get the matching Unix timestamp. → Select a timezone from the dropdown to view the result in your local zone or any IANA zone.

How to use Timestamp Converter

  1. 1

    Paste a Unix timestamp (in seconds or milliseconds) to convert it to a readable date and time.

  2. 2

    Or pick a date and time with the picker to get the matching Unix timestamp.

  3. 3

    Select a timezone from the dropdown to view the result in your local zone or any IANA zone.

  4. 4

    Read both the ISO 8601 string and the human-friendly date, then copy whichever you need.

Real examples of Timestamp Converter in action

Epoch seconds to date (UTC)
Before
1750982400
After
2025-06-27T00:00:00Z (Fri, 27 Jun 2025, 00:00 UTC)
Milliseconds detected automatically
Before
1750982400000
After
Same instant; the 13-digit value is read as milliseconds, not seconds
Pre-1970 negative timestamp
Before
-86400
After
1969-12-31T00:00:00Z (one day before the epoch)
Popular tools

Try our most-used tools

Who is Timestamp Converter for?

Backend developers reading epoch values out of server logs

API integrators converting time parameters between systems

QA engineers reproducing timezone and daylight-saving bugs

Data analysts turning stored epoch columns into readable dates

Why use Timestamp Converter?

  • Converts both ways, from epoch to date and from date to epoch, without switching modes.
  • Auto-detects seconds versus milliseconds by digit count, so you do not have to multiply by 1000 yourself.
  • Supports every IANA timezone through the browser's Intl API, not just UTC, which is essential for diagnosing offset bugs.
  • Handles negative timestamps, so dates before the 1970 epoch convert correctly.
  • Runs locally, so timestamps copied from production logs stay on your machine.

Common use cases

  • Translate an epoch value from a server log into a readable date while tracing an incident.
  • Generate a Unix timestamp to pass into a time-based API parameter or a scheduled job.
  • Reproduce a timezone bug by viewing the same instant in UTC and in the user's local zone.
  • Convert a human date into epoch seconds for a database query or a one-off script.

How Timestamp Converter compares to alternatives

Honest comparison to other popular options — pick the right tool for the job.

ToolMain limitation
EpochConverter.comThe de facto reference but heavy with ads around the converter
Google search 'epoch to date'Quick for one value but no timezone control or ms detection
date / Get-Date in the shellScriptable but flag syntax differs between macOS, Linux, and Windows
Timestamp ConverterFree, runs in your browser, no sign-up, no watermarks, no file-size limits beyond your device memory.

Limitations & things to know

  • Auto-detection assumes present-day magnitudes; an unusually small or large value may be read at the wrong scale
  • Display reflects your browser's timezone database, so very recent DST rule changes depend on the browser being current

About Timestamp Converter

A Unix timestamp converter translates between epoch time, the number of seconds elapsed since 1970-01-01 00:00:00 UTC, and a human-readable date. Epoch time is the lingua franca of computing because it is a single integer with no timezone, no formatting, and no ambiguity, which makes it ideal for storage and arithmetic but unreadable at a glance: 1750982400 tells a person nothing. Xevon Tools' Timestamp Converter closes that gap in both directions. Paste an epoch value to see the date, or pick a date to get the epoch. A frequent stumbling block is the difference between seconds and milliseconds. Unix time is classically measured in seconds, but JavaScript's Date.now() and many APIs return milliseconds, a thousand times larger. The tool auto-detects which you pasted by counting digits (roughly 10 digits for seconds, 13 for milliseconds at today's dates), so you avoid the common error of being off by a factor of 1000. Timezones are the other source of confusion. The timestamp itself is always UTC and carries no zone; the timezone only governs how that instant is rendered. The converter supports every IANA timezone through the browser's Intl API and correctly applies the relevant UTC offset, including daylight saving transitions, so you can view the same moment in UTC and in a user's local zone to reproduce offset bugs. It also handles negative timestamps for dates before 1970. Output is given both as an ISO 8601 string for technical use and a friendly format for quick reading. Because everything runs in your browser, timestamps pulled from production logs or database rows never leave your device, which is why developers reach for it when debugging logs, scheduling jobs, or chasing timezone discrepancies.

Frequently asked questions

It looks at the number's length. A 10-digit value is treated as seconds and a 13-digit value as milliseconds, which is the natural split for present-day dates. This matters because mixing the two scales by a factor of 1000 and lands you decades off.
All IANA timezones, such as America/New_York or Asia/Tokyo, via the browser's Intl API. The conversion accounts for that zone's UTC offset, including daylight saving where it applies.
No. A Unix timestamp is a count of seconds since 1970-01-01 00:00:00 UTC and is timezone-independent. The timezone only affects how that single instant is displayed, not the underlying number.
Yes. Those use negative timestamps, counting seconds backward from the epoch, and the tool converts them to the correct historical date.

Your files never leave your device

Every tool on Xevon Tools runs 100% in your browser. No uploads, no servers, no tracking. Free forever.

Learn more

Embed Timestamp Converter on your site

Add this tool to your own website, blog, or internal tool page with one line of code. Free to use, no attribution required (but appreciated).

<iframe src="https://www.xevontools.com/embed/timestamp-converter" width="100%" height="640" style="border:1px solid #e2e8f0;border-radius:12px;" title="Timestamp Converter — Xevon Tools"></iframe>
Share: