<p><span style="color: rgb(0, 0, 0);">Thanks to the perpetual fall of snow in glaciated regions, an ancient climate history is preserved in the glaciers around the world. Ice cores extracted from glaciers represent a detailed archive of climate proxies that link to complex geophysical processes. The reconstruction of the age of the ice at depth is a crucial first step for the interpretation of such ice core records.</span></p><p><span style="color: rgb(0, 0, 0);">In this talk I will summarise my research in the field of ice-core timescales; from how ice cores are dated and matched to other paleoclimate archives (like tree rings), to how revising timescales is sometimes necessary to correct biases and improve our understanding of ice proxies.</span></p>