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Time check: is the clock right?

Check whether your computer’s or smartphone’s clock is right – offset in seconds, time zone and solution. No data is stored.

Compares this device’s clock with the seacube server clock – the request’s travel time is taken into account.

No data is stored or transmitted. Only the server’s current time is requested; the comparison runs in the browser.

Background

Why the correct time matters.

Two-factor codes are valid for only 30 seconds, Windows sign-ins on company networks fail from a 5-minute offset, and certificates are checked against the clock. If a device’s clock is wrong, sign-in errors that are hard to explain follow.