We would like to thank Stuart Lee and Heike Hofmann for their feedback on earlier versions of this work. We thank Thomas Lin Pedersen for pointing out some critical ggplot2 internals, which makes the facet_calendar() implementation possible. We are very grateful to anonymous reviewers for helpful comments that have led to many improvements of the paper. The sugrrants R package is available from CRAN and the development version is available on Github All materials required to reproduce this article and a history of the changes can be found at the project’s Github repository