Unix Timestamp Converter

How to use

1. Enter value — Input a Unix timestamp or a date/time
2. See conversion — Both formats update automatically
3. Use the result — Copy the converted value

What Is a Unix Timestamp Converter?

A Unix timestamp converter translates between Unix epoch time (seconds since January 1, 1970) and human-readable date/time formats. This is an essential tool for developers working with APIs, databases, logs, and any system that stores time as numeric timestamps.

Why Timestamps Matter

Unix timestamps are used everywhere in software development because they're timezone-independent, easy to compare mathematically, compact to store, and unambiguous. APIs often return timestamps, databases store them for efficiency, and log files use them for precise timing. But humans can't read them — that's where this converter comes in.

Common Timestamp Formats

• Unix seconds: 10 digits (e.g., 1704067200 = Jan 1, 2024)
• Unix milliseconds: 13 digits (e.g., 1704067200000). Used by JavaScript and some APIs.
• ISO 8601: Human-readable format like 2024-01-01T00:00:00Z

Use Cases

Debug API responses that return timestamps. Convert log file timestamps to human-readable dates. Calculate time differences between events. Generate timestamps for database queries. Verify that server clocks are synchronized.

Privacy

All conversions happen in your browser. No data is sent anywhere.

Calculate date differences with the Date Difference Calculator. Generate UUIDs with the UUID Generator.

Frequently asked questions

What is a Unix timestamp?

A Unix timestamp is the number of seconds since January 1, 1970 00:00:00 UTC (the Unix epoch). It's a universal way to represent points in time as a single number.

Seconds vs milliseconds?

Unix timestamps are traditionally in seconds. JavaScript's Date.now() returns milliseconds. This tool auto-detects based on the number of digits (13+ digits = milliseconds).

What timezone is used?

Unix timestamps are always UTC. The displayed date/time is in UTC (ISO 8601 format).

What's the Year 2038 problem?

32-bit systems store timestamps as signed 32-bit integers, which overflow on January 19, 2038. Modern 64-bit systems don't have this limitation.

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