Different work weeks for Customer Projects based in different regions

Hello,

I work in the Middle East and have customers both in the Middle East region as well as Europe. We regularly create project plans and share these with our customers.

As the work week in the Middle East is Sun-Thurs, we have some projects plans that are Sun-Thurs and some that are Mon-Fri (for Europe based customers).

Is it possible to set different work weeks for different project plans instead of on the account level? At the moment we are manually changing the work week every time we need to switch between project plans for different customers