The sixty day spot chart shows the price history of copper for the last sixty day. This chart is sourced from kitcometals.com which is a great source for viewing trends in current and historical commodities markets.

There is a clear benefit of viewing commodities in the sixty day time frame rather than 24 hr spot. Because the data much more smooth, it makes it easier to spot a trend, and identify the direction of the price appreciation. The sixty day spot is also a good way to time your entry into the market once a trend is identified.
 
 
Let us examine a longer trend period: 1yr copper spot chart.