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Unix Timestamp Converter

Convert Unix timestamps (seconds or milliseconds) to dates and dates back to timestamps.

Processed in your browser. Nothing you enter is uploaded.

Seconds have up to 11 digits, milliseconds 12 to 14, microseconds 15 to 17, nanoseconds 18 or more. Override the unit if a value is read wrongly.

How to use it

  1. Choose timestamp to date, or date to timestamp.
  2. Enter the value; the unit is detected from the number of digits and can be overridden.
  3. Read the ISO 8601 UTC time, the UTC string and your local time.
  4. Copy the result.

Example

Seconds to a date
Input:1700000000
Result:2023-11-14T22:13:20.000Z

What does Unix Timestamp Converter do?

Unix Timestamp Converter turns a Unix timestamp into a readable date and a date back into a timestamp.

How does Unix Timestamp Converter work?

The unit is detected from the number of digits and can be overridden, then the browser's Date object does the conversion. Everything runs in your browser.

Is my data uploaded?

No. The values you enter stay in your browser.

Which formats and inputs does Unix Timestamp Converter support?

Inputs: A Unix timestamp in seconds, milliseconds, microseconds or nanoseconds; Or a date such as 2024-03-09 14:30:00. Output: ISO 8601 UTC time, the UTC string, your local time, and seconds and milliseconds.

What are the limits and limitations of Unix Timestamp Converter?

Limits: unit detection up to 11 digits is seconds, 12 to 14 milliseconds, 15 to 17 microseconds, 18 or more nanoseconds; date range within the range a JavaScript Date supports. A date without a UTC offset is read as UTC unless you choose your local time zone.

More questions

How does it tell seconds from milliseconds?

By the number of digits: up to 11 is seconds, 12 to 14 is milliseconds. You can override the unit.

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