Unix Timestamp Converter

How to Use

1. 1

   Choose conversion direction

   Use the top section to convert a Unix timestamp to a date, or the bottom section to convert a date to a Unix timestamp.

2. 2

   Enter your value

   For Unix → Date: paste a Unix timestamp (seconds or milliseconds). Click 'Now' to use the current time. For Date → Unix: enter a date in ISO format.

3. 3

   Convert and copy

   Click Convert and copy any result format (ISO, UTC, local) with the Copy button.

Features

• Convert Unix timestamps to ISO, UTC, and local time
• Convert human dates back to Unix timestamps
• Auto-detects seconds vs milliseconds timestamps
• One-click 'Now' button for current timestamp
• Copy individual result formats
• Works entirely in your browser
• No data sent to any server
• Free with no limits or sign-up

Frequently Asked Questions

QWhat is a Unix timestamp?

A Unix timestamp is the number of seconds (or milliseconds) elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch). It is a common standard for representing dates and times in software.

QDoes this tool support milliseconds?

Yes. The tool automatically detects whether your timestamp is in seconds (10 digits) or milliseconds (13 digits) and converts accordingly.

QWhat date formats are accepted for Date → Unix conversion?

The tool accepts ISO 8601 format (e.g. 2024-01-15T10:30:00Z), date-only format (2024-01-15), and most other standard date string formats supported by JavaScript's Date constructor.

QWhat timezone is used for the output?

Results include ISO (UTC), UTC string, and Local time formats. Local time uses your browser's timezone automatically.

QWhy do developers use Unix timestamps?

Unix timestamps are timezone-independent, compact, easy to store and compare, and universally supported across all programming languages and databases.

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