Free Online Unix Timestamp Converter
Use this free Unix Timestamp Converter to convert epoch timestamps into readable dates and convert human dates back into Unix time. It supports seconds, milliseconds, UTC time, local browser time, ISO strings, and live current timestamp values.
This tool is built for everyday developer workflows: debugging logs, API responses, database records, webhook events, analytics data, server timestamps, and scheduled jobs where raw epoch values need to be understood quickly.
All conversion happens in your browser with no signup. Paste a timestamp, enter a date, compare local and UTC formats, copy the result, and keep working without sending your data through an account-based tool.
Key Features
When to Use This Unix Timestamp Converter
How to Use the Unix Timestamp Converter
- 1. Paste a Unix timestamp in seconds or milliseconds into the timestamp input.
- 2. Use Auto mode for quick detection, or manually choose Seconds or Millis when you know the unit.
- 3. Compare the converted local time and UTC time to avoid timezone mistakes.
- 4. Use the date-to-timestamp section to generate Unix seconds, milliseconds, ISO, and UTC values from a local date.
- 5. Click any result card or copy button to copy the exact timestamp or date format you need.
Unix Timestamp Converter FAQ
What is a Unix timestamp?
A Unix timestamp is the number of seconds that have passed since January 1, 1970 at 00:00:00 UTC. Many APIs, databases, logs, and authentication systems use Unix time to store dates consistently.
What is the difference between seconds and milliseconds timestamps?
Unix timestamps are traditionally stored in seconds, while JavaScript and many frontend systems often use milliseconds. A seconds timestamp is usually 10 digits, while a milliseconds timestamp is usually 13 digits.
Does this timestamp converter use my local timezone?
Yes. The tool shows both local browser time and UTC time so you can compare how the same timestamp appears in your timezone and in universal time.
Can I convert a date back to epoch time?
Yes. Enter a date and time in the date converter section to generate Unix seconds, Unix milliseconds, ISO 8601, UTC, and local date formats.
Is this epoch converter free and private?
Yes. The converter is free, requires no login, and runs directly in your browser.