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Developer tool

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and convert normal dates back into Unix timestamps instantly.

Unix timestamp

Supports timestamps in seconds or milliseconds.

Date and time

Uses your browser's local time settings.

Converted result
Waiting for input
Enter a timestamp or choose a date and time to start.

Use either direction depending on which value you already have.

Convert timestamp

Helpful note

10 digits usually means seconds. 13 digits usually means milliseconds.

Conversion Details

  • Two-way conversion only.
  • Local browser time output.
  • No timezone comparison table yet.
Quick start

How to use

Follow these simple steps to use the tool.

1
Enter a timestamp or date

Paste a Unix timestamp to convert it, or choose a date and time to generate a timestamp.

2
Run the conversion

Convert in either direction with one click depending on the input you want to work from.

3
Copy the result

Review the converted value and copy it when it looks right.

Purpose

What it does

See what this free online tool can help with.

Converts Unix timestamps into readable local dates and times.

Converts standard date and time input back into a Unix timestamp.

Shows timestamp results in both seconds and milliseconds.

Runs in your browser without sending your input to an external service.

Before you start

Supported formats and limits

Review supported inputs, outputs, and practical limits for this tool.

Supported

Formats and options

  • Unix timestamps in seconds
  • Unix timestamps in milliseconds
  • Date and time input from the browser date-time picker
  • Modern desktop and mobile browsers
Limits

Things to know

  • Displayed dates follow your browser and device time settings.
  • This tool focuses on practical local conversion, not full timezone comparison.
  • Invalid or incomplete input will not convert until it becomes a valid timestamp or date.
Common questions

FAQ

Answers to common questions about this tool.

Does this tool support both seconds and milliseconds timestamps?

Yes. It detects common Unix timestamp lengths and shows both formats in the output.

Why does the date look different from another website?

This tool displays dates using your browser's local timezone. Another website may show the same timestamp in UTC, server time, or a manually selected timezone, so the date or hour can look different.

Can I convert a normal date back into a Unix timestamp?

Yes. Use the date and time input and the tool will generate Unix timestamps for you.

About this tool

Why use a free online Unix timestamp converter?

Unix timestamps show up constantly in logs, APIs, databases, and debugging workflows, but they are not pleasant to read at a glance.

This Bukmrk tool is built for quick timestamp checks in either direction. Paste a Unix value to decode it, or choose a normal date and time to generate a fresh timestamp.