Understanding the "daily" and "weekly" scopes in Unity.Social & Apple GameCenter Leaderboards

Unity's Social.TimeScope documentation says:

TimeScope.Today: Only return scores from today

( https://docs.unity3d.com/352/Documentation/ScriptReference/TimeScope.Today.html)

However, Apple's native Swift documentation says:

case today: Each player is restricted to scores recorded in the past 24 hours.

( https://developer.apple.com/documentation/gamekit/gkleaderboardtimescope)

So, when using Unity.Social.TimeScope to fetch "daily" scores from Apple's GameCenter, which of the following are returned:

1. Scores from today's date (And if so, in which timezone?).
2. Scores from the past 24 hours, regardless of dates.

The same goes for the "weekly" time scopes: what does "the last week" mean here?

1. In the scope of the "current" week, i.e. since Sunday?
2. In the scope of the last 168 hours (7*24), regardless of the current day?

Thanks :)