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Date & Time

Timestamp Converter

Convert Unix timestamps and date strings instantly.

Your data stays on your deviceNo upload, no serverWorks offline

Why use this tool

01

Switch between epoch values and readable UTC/local date outputs.

Timestamp Converter turns raw epoch values into readable dates and converts date strings back to numeric timestamps.

It supports both Unix seconds and Unix milliseconds.

How to use

02
01Enter a Unix timestamp or date-time string.
02Read converted seconds, milliseconds, UTC ISO, and local time outputs.
03Copy the representation that matches the log, database field, API payload, or ticket you are updating.

Quick checks before you copy

03

Confirm the input is the format you intended.

Scan the result before using it in a document, URL, config, or message.

Copy only the output you need.

Use Cases

Debug Log Timestamps

Convert Unix timestamps from application logs into human-readable dates to understand when events occurred.

Inspect JWT Expiry

Convert the exp claim from a JWT payload (a Unix timestamp) into a readable date to verify when the token expires.

Check Database Record Dates

Convert stored Unix timestamps from a database query result into readable dates without writing a conversion function.

Verify API Request Times

Convert timestamps from API request logs or headers to understand the timing of events during debugging.

Calculate Time Differences

Convert two timestamps to dates and mentally calculate the duration between events.

Tips & Tricks

  1. 01
    Unix timestamps are in seconds, not milliseconds

    Standard Unix timestamps count seconds since Jan 1 1970. JavaScript's Date.now() returns milliseconds. If your timestamp has 13 digits, divide by 1000 to convert to seconds.

  2. 02
    Check your timezone

    The converter shows time in your browser's local timezone by default. When comparing with server logs, confirm whether the logs use UTC.

  3. 03
    Use ISO 8601 for storage

    When storing timestamps in databases or APIs, prefer ISO 8601 format (e.g. 2026-04-26T10:30:00Z) over raw Unix timestamps for human readability.

FAQ

04
What is a Unix timestamp?

A Unix timestamp is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It's a universal way to represent a moment in time across systems and timezones.

Why does my timestamp give the wrong date?

If your timestamp has 13 digits, it's in milliseconds (JavaScript convention) — divide by 1000 to get seconds. The tool accepts both formats.

Does the converter account for timezones?

The output is shown in your browser's local timezone. The raw Unix timestamp itself is always UTC-based.

Can I convert a date to a Unix timestamp?

Yes. Enter a date in the date input and the tool shows the corresponding Unix timestamp.

What's the maximum date a Unix timestamp can represent?

A 32-bit Unix timestamp overflows on January 19, 2038 (the Year 2038 problem). 64-bit timestamps, used by modern systems, are valid for hundreds of billions of years.

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Timestamp Converter — Convert Unix timestamps and… | TOOLGRID