Backtesting

[Savas Savidis]

Is there a possibility to test in timeframes less than 1 day?

[Sacha]

Yes. You just need to have the intraday data. As of now the only data provider that is built-in into Stockalyze and provides intraday data is Alphavantage but that too is not very reliable. Your mileage may vary depending on stocks.
So, if you have intraday data then you can use Stockalyze to use smaller timeframe than daily for back testing.