Timestamp Converter
Convert Unix seconds, milliseconds, ISO time, and local time. Integers of 10 digits or fewer are seconds; longer integers are milliseconds.
- Open the tool
- Add the content you want to process
- Check the result before you copy or download it
API debugging
Turn a numeric log time into a readable date, or collapse a date back to Unix seconds.
Timezone checks
The result shows ISO, UTC, and local time together.
Current time
An empty input uses the current time so you can check the browser timezone.
Reading milliseconds as seconds
Ten digits or fewer means seconds. A longer integer means milliseconds.
Treating local time as UTC
Local time follows the browser timezone. Use ISO or UTC for API checks.
FAQ
Is 1710000000 seconds or milliseconds?
It has 10 digits, so it is seconds. A 13-digit integer is treated as milliseconds.
Can I paste a date string?
Yes. A parseable date string becomes ISO, UTC, local time, Unix seconds, and Unix milliseconds.
What happens if the input is empty?
The current time is used, which is useful for checking the browser timezone.
Is the value uploaded?
No. Conversion stays in the browser and does not use credits.
Why do local time and UTC differ?
Local time uses the browser timezone. Use ISO or UTC when comparing systems.
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Time fields often arrive inside JSON responses.
- Format the response
Expand the JSON before copying a time field.
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