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Unix Timestamp Converter

Current Unix timestamp

1775991121

Timestamp → Human date

Human date → Timestamp

Seconds

1775991120

Milliseconds

1775991120000
Pro Features
Batch conversionTimezone support

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About Unix Timestamp Converter

Unix Timestamp Converter translates Unix epoch timestamps into human-readable dates and vice versa. It supports both seconds and milliseconds precision, making it compatible with timestamps from databases, APIs, and logging systems. This tool is indispensable for developers debugging time-related issues, analyzing logs, or working with time-series data across different systems.

Key Features

  • Converts Unix timestamps (seconds and milliseconds) to human-readable date and time
  • Converts human-readable dates back to Unix timestamps in both seconds and milliseconds
  • Displays results in UTC and your local timezone simultaneously
  • Shows the relative time difference from the current moment (e.g., 3 hours ago)
  • Supports dates ranging from 1970 through the year 2099 and beyond
  • Displays the current Unix timestamp as a live counter for reference

How to Use Unix Timestamp Converter

  1. 1

    Enter a Unix timestamp

    Paste or type a Unix timestamp in seconds (10 digits) or milliseconds (13 digits) into the input field.

  2. 2

    View the converted date

    The tool instantly displays the corresponding date and time in both UTC and your local timezone.

  3. 3

    Or enter a date

    Use the date picker to select a date and time, and the tool will generate the corresponding Unix timestamp.

  4. 4

    Copy the result

    Click the copy button to grab the timestamp or formatted date string for use in your code, database queries, or API calls.

Common Use Cases

Log Analysis and Debugging

Convert Unix timestamps found in application logs, error reports, and monitoring alerts into readable dates to quickly identify when events occurred.

Database Query Construction

Generate Unix timestamps for specific dates to use in WHERE clauses when querying databases that store time as epoch integers.

API Development and Testing

Verify that timestamp fields in API responses correspond to the expected dates, and generate test timestamps for request payloads.

Why Use Our Unix Timestamp Converter

Decode cryptic Unix timestamps from logs and databases into readable dates without opening a terminal or writing Date conversion code. This tool auto-detects seconds versus milliseconds format, shows both UTC and local time side by side, and includes a live epoch counter for reference. It is the quickest way to answer the question: what date does this timestamp represent?

Timestamps Decoded Locally

Unix timestamp conversion happens entirely in your browser without any server calls. Log timestamps, database epoch values, and event times from production systems — which can reveal system activity patterns and incident timelines — are never shared externally. Debug timing issues in complete privacy.

Frequently Asked Questions

What is the difference between seconds and milliseconds timestamps?
A Unix timestamp in seconds is typically 10 digits (e.g., 1700000000) and counts seconds since January 1, 1970. Millisecond timestamps are 13 digits (e.g., 1700000000000) and include sub-second precision. The tool auto-detects which format you enter.
Does the tool handle dates before 1970?
Yes. Dates before the Unix epoch (January 1, 1970) are represented as negative timestamps. The converter correctly handles negative values and displays the corresponding pre-1970 date.
Why do my timestamps look different from another tool?
The most common cause is timezone differences. Some tools display times in UTC while others use your local timezone. This converter shows both UTC and local time to eliminate confusion.

Last updated: April 6, 2026