Utilko logo Utilko

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds timestamps with timezone conversion for debugging and development.

Used 53.5K times today

Current Unix Timestamp
Seconds
1775046312
Milliseconds
1775046312484
Wed, 01 Apr 2026 12:25:12 GMT

How to Use Unix Timestamp Converter

  1. 1

    Enter a Unix timestamp

    Paste a Unix timestamp in seconds (e.g., 1711929600) or milliseconds (e.g., 1711929600000) into the input field.

  2. 2

    View the converted date

    The tool instantly shows the corresponding UTC date, your local time, and lets you select any timezone.

  3. 3

    Convert a date to timestamp

    Use the reverse direction: pick a date and time to get the corresponding Unix timestamp in seconds and milliseconds.

Frequently Asked Questions

What is a Unix timestamp?
A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It is a universal, timezone-independent way to represent a point in time, widely used in databases, APIs, and log files.
How do I tell if a timestamp is in seconds or milliseconds?
Timestamps in seconds are typically 10 digits (e.g., 1711929600). Timestamps in milliseconds are 13 digits (e.g., 1711929600000). JavaScript's Date.now() returns milliseconds; most Unix systems return seconds.
What is the maximum Unix timestamp?
The Year 2038 Problem affects 32-bit systems where the signed integer overflows at 2,147,483,647 (January 19, 2038). 64-bit systems and JavaScript's Date object handle timestamps far beyond this, up to the year 275,760.

About Unix Timestamp Converter

The Unix Timestamp Converter translates between numeric Unix epoch times and human-readable date and time representations. Unix timestamps appear everywhere in software development — database columns, JWT expiry claims, log entries, API responses, and file system metadata — making this converter an indispensable debugging tool.

The converter handles both second-precision (10-digit) and millisecond-precision (13-digit) timestamps, automatically detecting the format. Full timezone support lets you see the corresponding local time in any timezone, and the reverse converter lets you generate timestamps for specific dates in the future or past.

More Developer Tools Tools

JSON Formatter

Format, beautify, and validate JSON instantly. Paste raw JSON and get a clean, indented, human-readable output with syntax error detection.

JSON Minifier

Minify and compress JSON by removing whitespace and comments. Reduce JSON payload size instantly for faster API responses and smaller storage footprint.

JSON to CSV Converter

Convert JSON arrays to CSV format instantly. Transform nested JSON data into spreadsheet-ready CSV files with automatic header detection.

JSON to YAML Converter

Convert JSON to YAML format instantly online. Transform JSON config files, API schemas, and data structures into clean, readable YAML syntax.

Base64 Encoder / Decoder

Encode text or decode Base64 strings instantly online. Convert between plain text and Base64 encoding for data URLs, authentication headers, and API tokens.

URL Encoder / Decoder

Encode or decode URLs and query strings instantly. Convert special characters to percent-encoding and back for safe URL transmission and debugging.

HTML Encoder / Decoder

Encode special characters to HTML entities or decode HTML entities back to plain text. Prevent XSS and display HTML code safely in web pages.

UUID Generator

Generate UUID v1, v4, and v5 universally unique identifiers instantly. Create single or bulk UUIDs for databases, APIs, and distributed systems.