Time is fundamental to Earth science. Geochronology data are essential for determining the timing, duration, and rates of Earth processes and events, and are increasingly required to perform modern, interdisciplinary Earth science research. The field of geochronology is rapidly evolving as the precision and spatial resolution of existing methods improve, and as new techniques are developed. There is growing demand for scientists who can understand the strengths and limitations of geochronology datasets, and effectively interpret them.