Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds. Free online epoch converter for developers.

Current Unix Timestamp

1775688971

Accepts seconds or milliseconds

Conversion Results

Enter a value to convert

How to Convert a Unix Timestamp

  1. 1

    Enter or paste your timestamp

    Type or paste a Unix timestamp into the input field. The converter accepts both 10-digit second values and 13-digit millisecond values and detects the format automatically.
  2. 2

    Review the converted date

    The tool instantly displays the corresponding date and time in UTC, your local timezone, ISO 8601 format, and a human-readable relative description such as '3 hours ago'.
  3. 3

    Switch to date-to-timestamp mode

    Click the Date to Timestamp tab to convert in the opposite direction. Pick a date and time using the date picker, and the tool generates the matching Unix timestamp in seconds and milliseconds.
  4. 4

    Copy and use your result

    Copy the converted value with one click and use it in your code, API request, database query, or configuration file.

Common Use Cases

1

API Development and Debugging

REST and GraphQL APIs frequently return timestamps as epoch integers. Converting them to readable dates helps you verify response payloads, debug webhook events, and write accurate integration tests.
2

Database Queries and Logs

Many databases store created_at and updated_at columns as Unix timestamps. Converting between epoch and human-readable dates lets you write precise WHERE clauses and interpret log entries quickly.
3

Cron Jobs and Scheduled Tasks

When scheduling recurring jobs with cron or task runners, you often need to verify that a future execution time corresponds to the correct date. Converting the target timestamp confirms your schedule is accurate.
4

Cross-Timezone Collaboration

Sharing a Unix timestamp removes all ambiguity about time zones. Team members anywhere in the world can convert the same integer to their local time without confusion over UTC offsets or daylight saving changes.

What is a Unix Timestamp?

A Unix timestamp (also known as Epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. This moment is called the Unix Epoch. Because Unix time is a single integer independent of time zones, daylight saving rules, and calendar quirks, it has become the standard way to record and exchange points in time across operating systems, programming languages, databases, and web APIs.

A Unix timestamp, also called Epoch time or POSIX time, counts the seconds elapsed since midnight UTC on January 1, 1970. Because it is a single timezone-neutral integer, it has become the de-facto way computers record and exchange moments in time. Every major programming language, database engine, and web framework supports Unix time out of the box, making it the most portable date format available.

This free online converter lets you paste any epoch value and instantly see the matching date in UTC, your local timezone, and ISO 8601 format. It auto-detects whether you entered seconds or milliseconds, so you never need to remember the digit count. You can also pick a calendar date and get back the corresponding Unix timestamp, which is helpful when writing database queries or setting API parameters. All processing runs in your browser with nothing uploaded to a server.

If you work with timestamps regularly, you may also find our Cron Expression Generator useful for scheduling tasks, or the Timezone Converter for mapping times across regions. For encoding data before sending it over HTTP, try the Base64 Encoder or URL Encoder/Decoder.

How It Compares

There are several Unix timestamp converters available online, including epochconverter.com, unixtimestamp.com, and built-in browser DevTools. Most web-based converters offer the same basic conversion, but FindUtils stands out by auto-detecting seconds versus milliseconds, showing UTC and local time side by side, and providing an ISO 8601 output in a single view. Everything runs client-side, so your data never leaves your machine.

Compared to command-line utilities such as the date command on Linux or PowerShell's Get-Date, a browser-based converter is faster for one-off lookups and does not require remembering format strings. For bulk conversions inside code, libraries like moment.js or Python's datetime are more appropriate, but for quick checks during debugging or code review, this tool saves time without switching context.

Tips for Working with Unix Timestamps

1
A 10-digit number is in seconds; a 13-digit number is in milliseconds. Dividing a millisecond timestamp by 1000 gives you the seconds equivalent.
2
Negative timestamps represent dates before January 1, 1970. For example, -86400 equals December 31, 1969.
3
JavaScript Date.now() returns milliseconds, while Python time.time() returns seconds with decimal precision. Know which format your language uses before comparing values.
4
Always store timestamps in UTC. Convert to local time only at the presentation layer to avoid off-by-one-hour bugs from daylight saving transitions.
5
The Year 2038 problem affects 32-bit signed integers that overflow on January 19, 2038. Use 64-bit timestamps in modern systems to avoid this limit.

Frequently Asked Questions

1

What is a Unix timestamp?

A Unix timestamp is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. This reference point is called the Unix Epoch. The format is used universally in software, databases, and APIs because it is timezone-independent and easy to compare mathematically.
2

How do I convert a Unix timestamp to a readable date?

Paste the timestamp into the converter input field. The tool instantly displays the corresponding date and time in UTC, your local timezone, and ISO 8601 format. It works with both 10-digit second values and 13-digit millisecond values.
3

What is the difference between seconds and milliseconds timestamps?

A standard Unix timestamp is a 10-digit integer counting seconds since the Epoch. A millisecond timestamp is a 13-digit integer that includes three extra digits for sub-second precision. JavaScript uses milliseconds by default, while most server-side languages use seconds. This converter detects the format automatically.
4

What is the Year 2038 problem?

Systems that store Unix time in a 32-bit signed integer will overflow on January 19, 2038, at 03:14:07 UTC. The maximum value a 32-bit signed integer can hold is 2,147,483,647, which corresponds to that exact moment. Modern 64-bit systems use larger integers that will not overflow for billions of years.
5

Can I convert a calendar date to a Unix timestamp?

Yes. Switch to the Date to Timestamp tab, select a date and time using the picker, and the tool outputs the corresponding Unix timestamp in both seconds and milliseconds. This is useful when constructing API query parameters or database filters.

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