Maybe using something like this:
https://stackoverflow.com/a/21465288

Hi @cschear thanks for opening an issue. I am not sure that such a specific special case is the best path forward for this action. My worry is that once we start special casing for weekends it might spiral into many special cases (weekends, holidays, leap years, etc).

That being said, I'll leave this issue open for a bit to see if there is a larger desire for this feature and maybe we can reevaluate if there is a large demand for this feature.

Also need this feature. We also trying to maintain low stale time (2 or 3days) but because of weekends counted, we are using 4 days instead now.

Counting holidays as working days wouldn't much matter because those are relatively rare cases.

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days

Can we revive this please? It's a pretty basic use case

I think this should be re-considered. At least weekends. It's absolutely crucial for most companies or projects in order to avoid mistakes.

I also vote for this feature

Seems like it should be the default.

Bump. I vote!