The setup for hours that the app displays only supports Pacific Standard Time (abbreviated as "PST"). Thus, it is an hour behind for half the year, every year, during Pacific Daylight Savings Time (abbreviated as "PDT"). The only workaround now is to manually adjust the hours twice per year, which is confusing and an annoying nuisance. For example, you need to set the hours to 6:00 AM to 8:00 PM PST if you want the tool to accurately display at 7:00 AM to 9:00 PM PDT.