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Timestamp Converter

Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds, UTC and local timezone.

Converter Tools Runs locally No data sent
Unix timestamp UTC local timezone ISO 8601 client-side only
Current Unix Timestamp
--
Loading current UTC time...
Timestamp →Date
Enter seconds since epoch (Jan 1, 1970 UTC) Invalid timestamp
Result will appear here
Date →Timestamp
Input is in your local timezone (UTC offset shown in result) Invalid date
Result will appear here
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A Unix timestamp is the number of seconds (or milliseconds) elapsed since January 1, 1970 00:00:00 UTC (the "epoch"). It is timezone-independent →the same number means the same moment everywhere on Earth. Your local timezone offset: --

What is a Unix Timestamp?

A Unix timestamp is the number of seconds or milliseconds since January 1, 1970 00:00:00 UTC. It gives software systems a single timezone-independent way to store and compare moments in time.

Why Use This Timestamp Converter?

When reading logs, debugging API responses, or writing database queries, raw Unix timestamps are hard to reason about. This tool converts them to human-readable dates →and back →instantly in your browser. It auto-detects seconds vs. milliseconds, shows both local and UTC output, and displays the live current timestamp for immediate copy-paste into your work.

  • Auto-detection: Automatically identifies seconds (10-digit) vs. milliseconds (13-digit) input.
  • Both directions: Timestamp →date, and date →timestamp, in the same tool.
  • Live clock: Current Unix timestamp updated in real time →copy it instantly.
  • Local + UTC: Outputs both your local time and UTC so you avoid timezone mistakes.

How to Use the Timestamp Converter

  1. Paste a Unix timestamp to convert it into readable UTC and local dates.
  2. Enter a date and time to convert it back into a timestamp.
  3. Use the live clock section when you need the current timestamp immediately.
  4. Copy the exact format you need for logs, APIs, or databases.

Quick Guides

Date & Time Format Reference helps you recognize ISO 8601 strings, Unix timestamps, and timezone offsets before converting.

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Understand Unix Timestamps (examples, use cases & FAQs) ▾
Example
Input 1000000000
Output Sun Sep 09 2001 01:46:40 UTC
Common Use Cases
  • Convert API timestamps to readable dates
  • Get the current Unix timestamp for logging
  • Convert a date to a timestamp for database queries
Why Use This Timestamp Converter
  • Converts in both directions between timestamps and human-readable dates.
  • Shows UTC and local-time output side by side for fewer timezone mistakes.
  • Helps with API debugging, log review, cron checks, and JWT expiry checks.
  • Includes a live current timestamp so you always have a quick reference.
Frequently Asked Questions
What is a Unix timestamp?

The number of seconds (or milliseconds) elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch).

Does this handle millisecond timestamps?

Yes. The tool auto-detects whether the input is seconds (10 digits) or milliseconds (13 digits).

Is the displayed date in my local timezone?

Yes. The tool shows both local time and UTC time for each converted timestamp.

How do I tell seconds and milliseconds apart?

A 10-digit timestamp is in seconds (standard Unix time). A 13-digit timestamp is in milliseconds (used by JavaScript's Date.now() and many APIs). To convert: divide milliseconds by 1000 to get seconds, or multiply seconds by 1000 to get milliseconds.