Indicators
traderjuk
I dont say this to be flippant, math Indicators are a personal preference.
There are a few things you have to keep in mind when you use a mathematical indicator like MACD. As they all take there basis off the historical prices they will all display the price that has already happened in a variety of different forms depending on what the indicator is trying to interpret.
The main thing to remember is what the indicator shows in relation to the price action that has already happened. They do have there uses but they are only as good as the person interpreting the information.
The best thing to use is the price action itself but then this is only good if you know how to interpret what you see.
To answer your question as to what time frame is best to use no-one can or will answer this question as your personal preferences and circumstances will differ from those that supply you with and answer. It is, IMO, directly related how much time you have and what time frames you are happy with using. It would be pointless to say , for example, that i use 5 minute chart with standard MACD settings with excellent results if you have no way off following a 5 minute chart due to your circumstance, work, children etc.
Most indicators work some of the time. Find something that fits your circumstance rather than fitting your circumstances around something that works for someone else.
Happy trading
Newtron Bomb