Meaning of: Play at any time

Question

In the Monopoly Empire game, some of the Empire cards say

Play at any time.

I'd like to understand the exact meaning of this rule.

• Does it mean at any time during my turn and/or I am involved in someone else's turn?
• Or does it mean at any time even during other player's turn who does nothing involving me?

Other Empire cards specify they are to be played during one's turn:

Play at any time on your turn.

Answer 1

"Play at any time" means exactly that. Whenever the player wants to do it, they can.

"Play at any time during your turn" restricts the prior freedom in one way - it must be the turn of the person playing the card.

No other conditions are relevant.