diff --git a/src/main/java/com/example/hackathon/domain/mission/dto/response/MissionTodayResponse.java b/src/main/java/com/example/hackathon/domain/mission/dto/response/MissionTodayResponse.java
index 19f5293..ee5725b 100644
--- a/src/main/java/com/example/hackathon/domain/mission/dto/response/MissionTodayResponse.java
+++ b/src/main/java/com/example/hackathon/domain/mission/dto/response/MissionTodayResponse.java
@@ -19,12 +19,8 @@ public record MissionTodayResponse(
         LocalDateTime deadlineAt,
         Boolean popupRequired
 ) {
-    public static MissionTodayResponse from(UserMissionLog log) {
-        java.time.LocalDateTime now = java.time.LocalDateTime.now(java.time.ZoneId.of("Asia/Seoul"));
-        boolean popupRequired = !now.isBefore(log.getAssignedAt())
-                && now.isBefore(log.getDeadlineAt())
-                && (log.getStatus() == com.example.hackathon.domain.mission.entity.MissionStatus.ASSIGNED
-                    || log.getStatus() == com.example.hackathon.domain.mission.entity.MissionStatus.CONFIRMED);
+    public static MissionTodayResponse from(UserMissionLog log, java.time.LocalDateTime now) {
+        boolean popupRequired = log.isPopupRequired(now);
 
         return new MissionTodayResponse(
                 log.getId(),
diff --git a/src/main/java/com/example/hackathon/domain/mission/entity/UserMissionLog.java b/src/main/java/com/example/hackathon/domain/mission/entity/UserMissionLog.java
index 7abcf90..68f7f9a 100644
--- a/src/main/java/com/example/hackathon/domain/mission/entity/UserMissionLog.java
+++ b/src/main/java/com/example/hackathon/domain/mission/entity/UserMissionLog.java
@@ -141,4 +141,10 @@ private void validateStatusTransition(MissionStatus current, MissionStatus targe
             com.example.hackathon.global.exception.ErrorCode.MISSION_ERROR_400_INVALID_TRANSITION
         );
     }
+
+    public boolean isPopupRequired(LocalDateTime now) {
+        return !now.isBefore(this.assignedAt)
+                && now.isBefore(this.deadlineAt)
+                && (this.status == MissionStatus.ASSIGNED || this.status == MissionStatus.CONFIRMED);
+    }
 }
diff --git a/src/main/java/com/example/hackathon/domain/mission/service/MissionService.java b/src/main/java/com/example/hackathon/domain/mission/service/MissionService.java
index 5a3b76e..925346b 100644
--- a/src/main/java/com/example/hackathon/domain/mission/service/MissionService.java
+++ b/src/main/java/com/example/hackathon/domain/mission/service/MissionService.java
@@ -43,7 +43,8 @@ public class MissionService {
 
     @Transactional
     public MissionTodayResponse getOrCreateTodayMission(String deviceId) {
-        return MissionTodayResponse.from(getOrCreateTodayMissionLog(deviceId, LocalDateTime.now(clock)));
+        LocalDateTime now = LocalDateTime.now(clock);
+        return MissionTodayResponse.from(getOrCreateTodayMissionLog(deviceId, now), now);
     }
 
     private UserMissionLog getOrCreateTodayMissionLog(String deviceId, LocalDateTime nowTime) {
@@ -108,7 +109,7 @@ public MissionTodayStatusResponse getTodayMissionStatus(String deviceId) {
         long remainingSeconds = calculateRemainingSeconds(log, now);
 
         // popupRequired 판단 조건
-        boolean popupRequired = isPopupRequired(log, now);
+        boolean popupRequired = log.isPopupRequired(now);
 
         return MissionTodayStatusResponse.of(log, popupRequired, remainingSeconds, expired);
     }
@@ -134,7 +135,7 @@ public MissionPopupResponse recordPopupShown(String deviceId) {
         userMissionLogRepository.save(log);
 
         long remainingSeconds = calculateRemainingSeconds(log, now);
-        boolean popupRequired = isPopupRequired(log, now);
+        boolean popupRequired = log.isPopupRequired(now);
 
         return MissionPopupResponse.of(log, remainingSeconds, popupRequired);
     }
@@ -261,10 +262,4 @@ private UserMissionLog resolveTodayLog(String deviceId, LocalDateTime now) {
     private long calculateRemainingSeconds(UserMissionLog log, LocalDateTime now) {
         return Math.max(Duration.between(now, log.getDeadlineAt()).getSeconds(), 0);
     }
-
-    private boolean isPopupRequired(UserMissionLog log, LocalDateTime now) {
-        return !now.isBefore(log.getAssignedAt())
-                && now.isBefore(log.getDeadlineAt())
-                && (log.getStatus() == MissionStatus.ASSIGNED || log.getStatus() == MissionStatus.CONFIRMED);
-    }
 }