Chart Timeframes
The two-part lookback and interval model behind the candlestick chart.
Written By [Scanr.ai] Eoin
Last updated 2 months ago
Chart Timeframes
The candlestick chart is built from two independent choices:
- Interval โ how much time each candle covers (the bar interval).
- Lookback โ how far back in history the chart loads (the window).
Picking these separately, rather than from a handful of fixed presets, lets you frame a chart exactly the way you want โ for example 5-minute bars over the last day, or daily bars over the last two years.
Interval (bar size)
The interval sets the granularity of each candle:
- Intraday โ 1m, 2m, 3m, 5m, 10m, 15m, 20m, 30m, 1h, 2h, 4h. Each candle covers minutes or hours.
- Daily and coarser โ 1d, 2d, 3d, 4d, 1 week, 1 month. Each candle covers a day or more.
A shorter interval shows more detail but less history on screen; a longer interval compresses more time into each candle, which is better for spotting the bigger trend.
Lookback (window)
The lookback is how much history is fetched and plotted. It is capped per interval so the app never tries to hold or draw an unbounded series on-device โ finer intervals allow a shorter maximum window, coarser intervals allow a longer one. Daily-and-coarser bars can look back years.
Intraday is a paid feature
Intraday intervals (anything below one day) are available on paid tiers. Daily, weekly and monthly intervals are available to everyone. If an intraday interval appears locked, it's a subscription gate, not a data gap.
Choosing a timeframe
- Day trading / scalping โ short interval (1mโ15m), short lookback.
- Swing trading โ 1hโ1d bars over weeks to months.
- Position / trend โ 1dโ1wk bars over months to years.
Match the interval to how long you intend to hold, and the lookback to how much context you need around the current setup.