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Free browser-based developer tool

Timestamp Converter

Convert Unix timestamps to readable dates, convert dates back to Unix time, compare seconds and milliseconds, view UTC, local time, ISO 8601, and batch convert timestamps instantly.

Convert Timestamp Now How It Works

Unix Time Converter

Paste a timestamp, date string, ISO date, or multiple values to convert instantly.

Input 0 characters
Active mode: Timestamp to Date Waiting for input
Converted Output 0 characters 
Converted timestamp result will appear here...
0 Current Seconds
0 Current Milliseconds
— Detected Type
0 Items
Local Timezone
— Status

Best Use Cases

Common workflows for developers, API users, backend logs, and debugging.

Debug API timestamps Convert Unix time from API responses, logs, analytics events, and database records.
Compare UTC and local time View ISO 8601, UTC, local time, seconds, and milliseconds in one clean output.
Batch convert logs Paste multiple timestamps or dates and convert them together for faster debugging.

Free Online Unix Timestamp Converter

This Timestamp Converter helps you convert Unix timestamps to readable dates, convert dates to Unix timestamps, inspect seconds and milliseconds, compare UTC and local time, generate ISO 8601 dates, and batch convert multiple timestamp values.

It is useful for developers, backend engineers, data analysts, API testers, database users, log debugging, analytics workflows, and anyone working with epoch time.

What is a Unix timestamp?

A Unix timestamp, also called epoch time, represents the number of seconds or milliseconds that have passed since January 1, 1970 at 00:00:00 UTC. It is widely used in programming, databases, APIs, logs, analytics platforms, and backend systems.

What can this Timestamp Converter do?

  • Timestamp to date: Convert Unix time into readable local, UTC, and ISO dates.
  • Date to timestamp: Convert readable date strings into Unix seconds and milliseconds.
  • Current timestamp: View the live current timestamp in seconds and milliseconds.
  • Batch conversion: Convert multiple timestamps or dates at once.
  • Auto unit detection: Detect seconds, milliseconds, or date input automatically.
  • Copy and download: Reuse converted results quickly.

Unix seconds vs Unix milliseconds

Unix timestamps are often stored in seconds, while JavaScript timestamps are commonly stored in milliseconds. A 10-digit timestamp usually represents seconds, while a 13-digit timestamp usually represents milliseconds.

UTC time vs local time

UTC is a universal time standard used across servers and systems. Local time depends on the user's device timezone. This converter shows both formats so you can compare timestamps correctly while debugging logs, APIs, and time-based data.

Privacy and browser-based processing

This Timestamp Converter runs directly in your browser. Your timestamps and date strings are not uploaded to a server, making it convenient for quick debugging and development workflows.

Frequently Asked Questions

Is this Timestamp Converter free?

Yes. This Unix timestamp converter is completely free to use online.

Does this tool support milliseconds?

Yes. It supports Unix timestamps in both seconds and milliseconds.

Can I convert date to timestamp?

Yes. Choose Date to Timestamp mode and enter a date string or use the date picker.

Can I batch convert timestamps?

Yes. Choose Batch Convert and enter multiple timestamps or dates separated by new lines or commas.

Does this tool upload my data?

No. All timestamp conversions happen locally in your browser.