To cite package ‘lutz’ in publications use:

  Teucher A (2024). _lutz: Look Up Time Zones of Point Coordinates_. R
  package version 0.3.2.9000, , <https://github.com/ateucher/lutz>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {lutz: Look Up Time Zones of Point Coordinates},
    author = {Andy Teucher},
    year = {2024},
    note = {R package version 0.3.2.9000, },
    url = {https://github.com/ateucher/lutz},
  }