diff --git a/src/ConnectSSE.tsx b/src/ConnectSSE.tsx
index 4281532c..104651d6 100644
--- a/src/ConnectSSE.tsx
+++ b/src/ConnectSSE.tsx
@@ -47,7 +47,6 @@ const invalidateCrewQueries = (
   queryClient: QueryClient,
   newCrewAlarm: CrewAlarm
 ) => {
-
   if (newCrewAlarm.crewAlarmMessage === '크루 가입 수락을 기다리고 있어요') {
     queryClient.invalidateQueries({
       queryKey: ['crew-members', newCrewAlarm.crewId, '대기'],
diff --git a/src/pages/CreateGamePage/useCreateGamePage.ts b/src/pages/CreateGamePage/useCreateGamePage.ts
index 8aef1c1f..a3bdf48b 100644
--- a/src/pages/CreateGamePage/useCreateGamePage.ts
+++ b/src/pages/CreateGamePage/useCreateGamePage.ts
@@ -139,20 +139,21 @@ export const useCreateGamePage = () => {
       playYear > currentYear ||
       (playYear >= currentYear && playMonth > currentMonth) ||
       (playYear >= currentYear &&
-        playMonth > currentMonth &&
+        playMonth >= currentMonth &&
         playDay > currentDay)
     ) {
       return true;
     }
+
     if (
-      Number(playStartTimeHours) <= currentHours ||
-      (Number(playStartTimeHours) <= currentHours &&
-        Number(playStartTimeMinutes) <= currentMinutes)
+      Number(playStartTimeHours) > currentHours ||
+      (Number(playStartTimeHours) >= currentHours &&
+        Number(playStartTimeMinutes) > currentMinutes)
     ) {
-      return false;
+      return true;
     }
 
-    return true;
+    return false;
   };
 
   return {