California high school teachers are constantly racing against the clock. They are expected to provide a strong college preparatory curriculum, promote critical and creative thinking, and meet students' social and emotional needs. Learning time is an essential resource for addressing all of these goals. But, it seems to be in short supply in many California high schools. This brief highlights core findings from "It's about Time: Learning Time and Educational Opportunity in California High Schools"--a report that draws on a statewide teacher survey to examine how learning time is distributed across California high schools. The survey, conducted by UCLA IDEA during the 2013-2014 school year, included a representative sample of nearly 800 teachers. Throughout the report learning time across three groups of high schools are compared: (1) Low Poverty Schools (0-25% of students receive Free or Reduced Price Lunch); (2) Low and Mixed Poverty Schools (0-50% of students receive Free or Reduced Price Lunch); and (3) High Poverty Schools (75-100% of students receive Free or Reduced Price Lunch). [For the full report, see ED574620.]