Wis. Stat. § 893.15: Effect of an action in a non-Wisconsin forum on a Wisconsin cause of action.

(1) In this section “a non-Wisconsin forum” means all courts, state and federal, in states other than this state and federal courts in this state.

(2) In a non-Wisconsin forum, the time of commencement or final disposition of an action is determined by the local law of the forum.

(3) A Wisconsin law limiting the time for commencement of an action on a Wisconsin cause of action is tolled from the period of commencement of the action in a non-Wisconsin forum until the time of its final disposition in that forum.

(4) Subsection (3) does not apply to an action commenced on a Wisconsin cause of action in a non-Wisconsin forum after the time when the action is barred by a law of the forum limiting the time for commencement of an action.

(5) If an action is commenced in a non-Wisconsin forum on a Wisconsin cause of action after the time when the Wisconsin period of limitation has expired but before the foreign period of limitation has expired, the action in the non-Wisconsin forum has no effect on the Wisconsin period of limitation.