Timestamp Converter

Convert a Unix timestamp to a readable date and back, in your timezone or UTC.

Unix timestamp → date

Date → Unix timestamp

Current time

All conversion runs in your browser.

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Timestamp Converter — frequently asked questions

Does it accept seconds or milliseconds?+

Both — it detects which based on the magnitude of the number.

What timezone is 'local'?+

Your device's timezone. UTC and ISO are also shown.

你们会把我的文件上传到服务器吗？+

不会——这里的每个工具都完全在你的设备上处理文件，不会向服务器上传任何内容。唯一的例外是 AI 工具，它们会把提取的文本（而非文件本身）发送给 Claude 来完成工作。

有文件大小限制吗？+

我们没有人为设置限制，但由于处理过程在你的浏览器中进行，非常大的文件（超过 500MB 或 1000 页）会受到你设备内存的限制，而非我们的限制。