To cite package ‘gghourglass’ in publications use:

  de Vries P (2025). _gghourglass: Plot Records per Time of Day_. R
  package version 0.0.1.0008, ,
  <https://github.com/pepijn-devries/gghourglass>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gghourglass: Plot Records per Time of Day},
    author = {Pepijn {de Vries}},
    year = {2025},
    note = {R package version 0.0.1.0008, 
},
    url = {https://github.com/pepijn-devries/gghourglass},
  }