Timestamp Converter

Convert between Unix timestamps and human-readable dates. Supports seconds, milliseconds, and ISO 8601.

All processing happens in your browser

Examples: 1700000000, 1700000000000, 2024-01-15T10:30:00Z, Jan 15 2024

What is a Unix Timestamp?

A Unix timestamp (also called Epoch time or POSIX time) represents the number of seconds elapsed since January 1, 1970, 00:00:00 UTC. It provides a simple, timezone-independent way to represent any point in time as a single number, used by virtually every operating system and programming language.

Enter a Unix timestamp (seconds or milliseconds) or a human-readable date string, and the tool converts it instantly. Click Use Now to populate the current time. The live clock at the top shows the current Unix timestamp updating in real-time for quick reference.

Timestamp conversion is essential when debugging server logs, analyzing API responses, working with database records, comparing event sequences across time zones, and converting between date formats in data pipelines. Developers encounter Unix timestamps daily in log files, JWT tokens, and cron job configurations.

The tool auto-detects whether your input is a 10-digit seconds timestamp or a 13-digit milliseconds timestamp. It also parses ISO 8601 strings, RFC 2822 dates, and natural language date formats. Be aware of the Year 2038 problem affecting 32-bit systems, where the maximum timestamp (2,147,483,647) overflows on January 19, 2038.

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