Basically trading is depend on how closely you know the market. If you are a very old trader then there is no problem with daily trade. But If you are a beginner then the trading on Monday when market has just started & at Friday when market is going to close, trading is little difficult here if you get profit then profit margin is very high if you get in loss then loss margin is also very high, so it's very risky time to trade. So I suggest to begginers trade only 2 days in week . And for advance users there is no limitations on trading.