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Check codes when device time is off

Compare a one-time code with the device time to estimate clock difference.

Input

Up to 200 KB

Result

Your result will appear here.

 Processed on your device · Content is not stored.


Instructions & limits
How to use
Compare a one-time code with the device time to estimate clock difference.
  1. Enter the private key and code from your authenticator app.
  2. Enter the device time when the code was shown.
  3. Use the estimate to check your clock; one code cannot establish an exact difference.
When to use this tool
Compare a one-time code with the device time to estimate clock difference.
Example input
GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ
Limit
Processes supplied input only. Review the output and the units or assumptions before use.
Frequently asked questions
Where is my data processed?
No. Your content is processed on your device. We do not receive your input or results.
Do I need an account?
No. Use the tools for free without signing in. Favorites and recent tools are stored only in your browser.
Does this work on mobile?
Yes. This tool supports phones and modern browsers. 
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