DevTools

Timestamp Converter

Convert Unix timestamps (seconds & milliseconds) to human-readable dates, or parse date strings into various formats.

Seconds Timestamp
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Milliseconds Timestamp
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ISO 8601
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ISO 9075
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ISO 9075 Basic
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UTC Time
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JS Date String
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Understanding Unix Timestamps and Date Conversion

A Unix timestamp (also known as Epoch time) is a system for describing a point in time. It is defined as the number of seconds that have elapsed since 00:00:00 UTC on January 1, 1970, minus leap seconds. This universal format allows developers to store and compare dates easily across different programming languages and databases without worrying about complex formatting rules.

Key Features of this Timestamp Converter

  • Automatic Detection: Our tool intelligently detects whether you've entered a value in seconds (10 digits) or milliseconds (13 digits), providing instant results without manual configuration.
  • Human-Readable Formats: Convert cryptic numbers into standard ISO 8601, ISO 9075, and UTC strings that are easy to read and use in documentation or code.
  • Bidirectional Parsing: Not just for numbers! You can also paste a date string like "2024-01-11" or "Jan 1, 2024" to generate its corresponding Unix timestamp.

Common Use Cases

Developers frequently use Unix timestamps for database indexing, logging events in distributed systems, and setting expiration times for tokens. Converting these back to local time is essential for debugging and displaying information to users. Whether you are working with JavaScript Date objects, Python's datetime, or SQL timestamps, this utility provides the precision you need.

Note: Local time conversions depend on your browser's current timezone settings. For consistent results across teams, we recommend using UTC or ISO 8601 formats.

Unix Timestamp Explained

A Unix timestamp (also known as Epoch time) is a system for describing a point in time. It is the number of seconds (or milliseconds) that have elapsed since 00:00:00 UTC on January 1, 1970. It is widely used in computing for its simplicity and consistency across different platforms.

Time Zones & Formats

While the Unix timestamp itself is UTC-based, this tool automatically displays the equivalent time in your local time zone as well. Common formats include ISO 8601 (e.g., 2024-05-20T10:00:00Z) and human-readable local time.