diff --git a/src/rooms/commands/DiscardCommand.ts b/src/rooms/commands/DiscardCommand.ts
index 3d44def..5938aeb 100644
--- a/src/rooms/commands/DiscardCommand.ts
+++ b/src/rooms/commands/DiscardCommand.ts
@@ -110,7 +110,7 @@ export class DiscardCommand extends Command<CardGameState, { client: Client, car
     if (elapsedTime >= 0) {
       let maxTime = new GameEnv().maxDiscardTime * 1000
       let count = elapsedTime - maxTime
-      let newCount = player.extraTime - Math.min(count, 0)
+      let newCount = player.extraTime - Math.max(count, 0)
       player.extraTime = Math.max(newCount, 0)
     }
     for (let card of tmpCards) {
diff --git a/src/rooms/commands/SelectPetCommand.ts b/src/rooms/commands/SelectPetCommand.ts
index a3b4975..e2d46e4 100644
--- a/src/rooms/commands/SelectPetCommand.ts
+++ b/src/rooms/commands/SelectPetCommand.ts
@@ -77,7 +77,7 @@ export class SelectPetCommand extends Command<CardGameState, {
     let elapsedTime = this.room.stopSchedule(ClockNameConst.SELECT_PET)
     if (elapsedTime >= 0) {
       let count = elapsedTime - new GameEnv().playerActTime * 1000
-      let newCount = player.extraTime - Math.min(count, 0)
+      let newCount = player.extraTime - Math.max(count, 0)
       player.extraTime = Math.max(newCount, 0)
     }