My specific use case is that I'm currently tagging shows in sonarr when they show up in a chart collection, eg. 'chart-tmdb-trending'. I'd like to also tag the show with something like 'charted-2025-11', ie. the current year and month, so that I'll be able to easily see how long it's been since a show appeared on a chart.

I can imagine other use cases, though, for embedding the current date in a collection title or description.

I'd think allowing for a strftime string would be the most useful and flexible, if that would be possible.