What is a Unix timestamp?

A Unix timestamp is the count of time elapsed since January 1, 1970 00:00:00 UTC. It is often stored in seconds or milliseconds so systems can compare, sort, and transmit dates in a machine-friendly format.

Why does the same timestamp look wrong by several hours?

The raw timestamp may be correct while the displayed time is being interpreted in a different timezone. Check whether you are comparing UTC output against a local event time.

How can I quickly tell seconds from milliseconds?

As a rule of thumb, 10 digits usually means seconds and 13 digits usually means milliseconds. If a converted year looks wildly wrong, that is often the first thing to check.

Is this tool useful outside software development?

Yes. It also helps with analytics exports, CSV cleanup, support investigations, and any workflow where a system stores dates as raw epoch values.

Can I rely on the converted value without double-checking it?

You should still verify important dates against the source system, especially when timezone, daylight saving time, or export formatting may affect what you expected to see.

What is the most common timestamp mistake?

The most common mistake is confusing seconds and milliseconds. The second most common mistake is comparing a UTC timestamp to a local event time without noticing the timezone difference.

Unix Timestamp Converter

Convert 10-digit and 13-digit Unix timestamps to readable dates, and switch dates back to epoch values with UTC and local output.

Current Time

Current Timestamp

1776178406

Current Date

4/14/2026, 10:53:26 PM

Timezone

Timestamp to Date

Enter a Unix timestamp to convert to human-readable date

Unix Timestamp

Date to Timestamp

Enter a date to convert to Unix timestamp

Date & Time

Quick Examples

Common Timestamps

Unix Epoch:

Year 2000:

946684800

Year 2020:

1577836800

Format Examples

Seconds: 1640995200

Milliseconds: 1640995200000

Date: 2022-01-01T00:00:00

About Unix Timestamp Converter

This timestamp converter is built for the common job of moving between Unix time and readable dates without guessing whether the input is in seconds or milliseconds.

It is most useful when you are reading API responses, checking database values, reviewing logs, or debugging event timing. The goal is not only to show a converted value, but to make the format easier to verify before you paste it into code, dashboards, or documentation.

How to Use Unix Timestamp Converter

Paste the value or enter a date: Start with either the raw Unix timestamp you received from a log or API, or type the human-readable date you want to convert.
Check whether the value is in seconds or milliseconds: Most 10-digit Unix values are seconds and most 13-digit values are milliseconds. Use that as a quick sanity check before trusting the result.
Review the converted date in context: Look at the full date, time, and timezone context rather than only the numeric timestamp. This catches off-by-hours errors early.
Copy the format that matches your workflow: Use the converted output that fits your task, such as a readable date for QA notes or a Unix value for code, logs, and scripts.
10-digit timestamps are usually seconds; 13-digit timestamps are usually milliseconds.
A correct conversion can still be misleading if you read it in the wrong timezone.
When debugging an API, compare the converted value against the event time you expected rather than assuming the payload is correct.

Features of Unix Timestamp Converter

Second vs millisecond checks: The page is useful for the most common timestamp mistake: reading a millisecond value as seconds or the other way around.
Readable date output: The result is easier to verify when you need to compare a raw Unix value against a log line, deployment event, or scheduled task.
Developer workflow support: Useful for API debugging, database checks, analytics validation, and support work where raw epoch values appear regularly.
Current time reference: A current timestamp reference helps when you need a quick baseline for testing webhooks, caching, or expiry logic.
Timezone awareness: The page is most valuable when you use it together with timezone awareness instead of treating timestamps as plain local clock values.
Copy-ready outputs: Converted values can be copied directly into issue reports, code comments, test fixtures, or debugging notes.