In Technical Analysis, the timeframe of a chart refers to the period that each candlestick or data point represents. Choosing the right timeframe is crucial because it aligns with your trading goals and strategy. For example, a 1-hour chart will show price movements for each hour, while a daily chart will show one candlestick per day. Different timeframes provide different perspectives on the market, and understanding how to use them is a key skill in TA.