Extended time is a commonly-used test adaptation for standardised high-stakes tests. In this study, extended time provided for test-takers with dyslexia is examined. Data from standard versions of the Swedish Scholastic Aptitude Test (SweSAT) and data from test administrations where extra time is provided was used. Indications are that the standard version of the test is speeded and that the extra time provided improves test results for test-takers with dyslexia. There are, however, no conclusive indications supporting differential speededness due to the extra time. Findings from this study shows the beneficial effects of providing extra time for test-takers with dyslexia, but it does not conclusively disprove that this extra time cause an unfair advantage.