In Hearthstone Battlegrounds, the round timer consistently ends about 1 second earlier than the time shown on the UI. For example, if the timer says “1 second” remaining, the round may end immediately instead of giving the full second to complete actions.
This early cutoff disrupts gameplay, especially during late-game turns where quick APM decisions are critical. It causes actions (like buying, selling, moving, or tripling minions) to be cut off even though the timer visually indicates there’s still time.