The UK Singles Sales Chart is a weekly record chart compiled by the Official Charts Company (OCC) on behalf of the British record industry. The UK Singles Sales Chart differs from the UK Singles Chart (also known as the Official Singles Chart) in that it counts "physical" sales only (including downloads), whereas the Official Chart also counts streaming. Since 10 July 2015, the chart week has run from Friday to Thursday with the chart-date given as the following Thursday; prior to this, the chart week ran from Sunday to Saturday, with the chart date given as the following Saturday.