ToolbitUnix Timestamp and Epoch Converter
Turn 1707307200 into a date you can reason about — or go the other way. Seconds and milliseconds are detected automatically, and both UTC and local time are shown.
What the Timestamp Converter does
- Automatic detection of second and millisecond precision.
- UTC, local time, and ISO 8601 output side by side.
- Convert a date back into an epoch value.
- Live "now" timestamp for quick copying.
How to use it
- Paste a timestamp, or pick a date.
- Read the converted value in UTC, local time, and ISO 8601.
- Copy whichever representation your code needs.
Why it runs locally
Toolbit has no backend. The Timestamp Converter is implemented with standard browser APIs, so your input is processed in the tab and never uploaded, logged, or retained. That is what makes it safe to paste real data into — and it is also why the tool keeps working with the network disconnected, once you have installed Toolbit as an app.
Frequently asked questions
- Seconds or milliseconds?
- Detected automatically from the magnitude — a 13-digit value is treated as milliseconds, a 10-digit value as seconds. You can override it.
- Which time zone is used?
- Both UTC and your machine's local time zone are shown, so you can compare them without doing the arithmetic yourself.
- Does it need a network connection?
- Yes. Toolbit installs as a PWA and ships as a desktop app for macOS, Windows, and Linux, so the whole toolbox keeps working on a plane, behind a corporate firewall, or on an air-gapped machine.