As mentioned in the videos it will works well in 5min,15min, 30min, hourly and daily time frame . So time frame doesn't matter, If you are aggresive trader, you will go for shoter time frame. but please make sure you have to identify the trend or sideways market with the help of bollinger band.
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BnF has reversed from the .78 fib retracement in a classic channel.
It is all set to touch the support of 25400.
With the last election budget coming up, this doesn't seem far. A massive sell-off is enough.