Again, this depends on which service you select. If you select SpeedUp 2.0 then you have 28 days (from when you sign up for your SpeedUp 2.0 Test), including weekends. If you have not completed the test by 28 days then your account will be deemed unsuccessful. If you wish to start over, you can at any time.
If you are selecting one of the other services, ‘TradingView/SpeedUpTrader’ or ‘Other Platforms Supported’ your test will have no time limit.