A time frame is a period during which the chart is formed. You can change the time frame by clicking on the icon in the lower-left corner of the chart.
In the new Android app version, you can choose a time frame on the panel above the chart. 
The time frames are different for chart types:
- For the “Candle” and “Bar” charts, the minimum frame is 5 seconds, the maximum – 30 days. It displays the period during which 1 candle or 1 bar is formed.
- For the “Mountain” and “Line” charts – the minimum frame is 1 second, the maximum is 30 days. The time frames for these charts determines the frequency of displaying the new price changes.
Note.The larger the time frame, the more visible the major trends in price movement are. The smaller the time frame, the more visible current, local trends.