To change it, go to the Insight Settings page -> Date & Time tab. Insight can display data using a 24-hour or 12-hour clock. The 24-hour clock uses times like 9:00, 16:00, and 25:00 (1:00 of the following day). The 12-hour clock uses times like 9am, 4pm, and 1am (+1d). You can sync your clock settings with those in TableCheck by selecting the "TableCheck clock setting" option.