How to Use

  1. Enter a value: Type a Unix timestamp (seconds or milliseconds) or a date string (e.g., "2025-06-01" or "June 1, 2025").
  2. View results: The tool auto-detects the input format and displays all conversions — Unix seconds, Unix milliseconds, ISO 8601, UTC, and local time.
  3. Copy: Click any result to copy it to your clipboard.

Frequently Asked Questions

What is a Unix timestamp?

A Unix timestamp is the number of seconds (or milliseconds) that have elapsed since January 1, 1970 at 00:00:00 UTC. It's widely used in programming, databases, and system logs.

How do I know if my timestamp is in seconds or milliseconds?

The tool auto-detects. If the number has 10 or fewer digits, it's treated as seconds. If it has 13+ digits, it's treated as milliseconds.

What date formats are accepted?

ISO 8601 (2025-06-01T12:00:00Z), natural language (June 1, 2025), and many common formats. The tool uses your browser's built-in date parser.

Unix timestamps are used everywhere in software development, from database records to API responses. TryQuickToolBox's free timestamp converter lets you convert between Unix timestamps (seconds and milliseconds), ISO 8601 dates, UTC times, and local times. Auto-detection means you can paste any format and get instant results.