Convert between Unix timestamps and ISO UTC date-time.
Use the example inputs or enter your own values.
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Uses milliseconds since the Unix epoch and reports ISO UTC plus epoch seconds and milliseconds.
Enter timestamp or iso date, input format. Update the result, inspect it, then copy or download the output. Reset restores the example inputs so you can start a new calculation.
Example inputs: Timestamp or ISO date: 2026-01-01T00:00:00Z · Input format: date.
Include a timezone in date input. Leap seconds are not represented by JavaScript dates.
The tool does not connect to your website, change your hosting or install anything in WordPress. Any output must be applied separately in the intended environment.
No. This tool works in a modern browser with JavaScript enabled. Your inputs are not submitted to a server by the tool.
Use Copy for the textual result or Download for a local file. Image tools download a generated image when one is available.
No. It produces a result for you to review. Production changes remain a separate step.
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