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Unix Timestamp Converter
Convert Unix seconds or milliseconds to ISO dates and readable time zones. Convert ISO dates back to Unix timestamps.
Your results will appear here.
Three steps. That’s it.
A useful toolkit for text, data, images and calculations.
- 01
Add your input
Choose a tool, enter values or select a file.
- 02
Make it yours
Adjust the options and run the action.
- 03
Take the result
Copy the result or download its file.
What this tool does
Inspect dates from logs, API payloads and database exports. You can enter Unix timestamps in seconds or milliseconds, or an ISO date-time with an explicit time-zone offset. Results include the UTC ISO date, Unix seconds, Unix milliseconds and a readable date in your selected time zone. The explicit input unit avoids guessing whether a numeric value represents seconds or milliseconds.
How to use it
Select the input format and, for Unix values, its unit. Choose a display time zone, paste the value and convert it.
Example
1970-01-01T00:00:00Z
This date corresponds to Unix timestamp 0.
What happens with a date without a time zone?
A date-only value uses UTC midnight. Date-time input requires Z or an explicit offset such as +02:00; ambiguous local date-times are rejected.
Where is my text processed?
The bundled tool code processes text in your browser. It does not send or save your input. Extensions and other site plugins may have separate behavior.
Epoch time converter online
Inspect an epoch timestamp from an application log. Select seconds or milliseconds explicitly and include an offset when entering a date/time.
How to use it
Enter the source input or select Try example. Review Input, Unix unit, Display zone. Select Convert timestamp and inspect the result before copying or downloading.
Options and example settings
Worked examples
Inspect an epoch timestamp from an application log.
Worked example — Unix Timestamp Converter
Settings: Input: Unix timestamp; Unix unit: Seconds; Display zone: UTC
Input:
1791547200
Output:
UTC (ISO): 2026-10-09T12:00:00.000Z Unix seconds: 1791547200 Unix milliseconds: 1791547200000 UTC: Friday, 9 October 2026 at 12:00:00 UTC
The example output has 4 lines. Compare its order, separators and whitespace with the input before copying the result.
Limitations and common mistakes
- Select seconds or milliseconds explicitly and include an offset when entering a date/time.
Frequently asked questions
How can I transform a Unix timestamp online?
Enter the source input or select Try example. Review Input, Unix unit, Display zone. Select Convert timestamp and inspect the result before copying or downloading.
Where is my input processed?
The bundled tool processes input in your browser. It does not upload tool input to a conversion service. Other site plugins, analytics, advertising and browser extensions may have separate behavior.
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