diff --git a/cakey-api/src/main/java/com/cakey/store/service/StoreService.java b/cakey-api/src/main/java/com/cakey/store/service/StoreService.java
index a3ab896..d008a88 100644
--- a/cakey-api/src/main/java/com/cakey/store/service/StoreService.java
+++ b/cakey-api/src/main/java/com/cakey/store/service/StoreService.java
@@ -18,8 +18,6 @@
 import com.cakey.store.exception.StoreNotfoundException;
 import com.cakey.store.facade.StoreFacade;
 
-import java.time.LocalTime;
-import java.time.format.DateTimeFormatter;
 
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
@@ -28,7 +26,6 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
-import java.util.function.Function;
 import java.util.stream.Collectors;
 
 import static com.cakey.store.exception.StoreErrorCode.STORE_KAKAO_LINK_NOT_FOUND;
@@ -247,31 +244,26 @@ public StoreDetailInfoRes getStoreDetailInfo(final long storeId) {
             throw new StoreNotfoundException(STORE_OPERATION_TIME_NOT_FOUND);
         }
 
-        final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("HH:mm");
-
-        final Function<LocalTime, String> formatTime = time -> time == null ? null : time.format(formatter);
-
         return StoreDetailInfoRes.of(
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.monOpen())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.monClose())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.tueOpen())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.tueClose())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.wedOpen())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.wedClose())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.thuOpen())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.thuClose())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.friOpen())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.friClose())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.satOpen())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.satClose())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.sunOpen())),
-                formatTime.apply(LocalTime.from(storeOperationTimeDto.sunClose())),
+                storeOperationTimeDto.monOpen(),
+                storeOperationTimeDto.monClose(),
+                storeOperationTimeDto.tueOpen(),
+                storeOperationTimeDto.tueClose(),
+                storeOperationTimeDto.wedOpen(),
+                storeOperationTimeDto.wedClose(),
+                storeOperationTimeDto.thuOpen(),
+                storeOperationTimeDto.thuClose(),
+                storeOperationTimeDto.friOpen(),
+                storeOperationTimeDto.friClose(),
+                storeOperationTimeDto.satOpen(),
+                storeOperationTimeDto.satClose(),
+                storeOperationTimeDto.sunOpen(),
+                storeOperationTimeDto.sunClose(),
                 storeDetailInfoDto.address(),
                 storeDetailInfoDto.phone()
         );
     }
-
-
+    
     public StoreListByPopularityRes getStoreByRank() {
         final List<StoreByPopularityDto> storeByPopularityDtoList;
         try {
diff --git a/cakey-domain/src/main/java/com/cakey/operationtime/dto/StoreOperationTimeDto.java b/cakey-domain/src/main/java/com/cakey/operationtime/dto/StoreOperationTimeDto.java
index 8777201..e892216 100644
--- a/cakey-domain/src/main/java/com/cakey/operationtime/dto/StoreOperationTimeDto.java
+++ b/cakey-domain/src/main/java/com/cakey/operationtime/dto/StoreOperationTimeDto.java
@@ -6,35 +6,35 @@
 
 @Builder(access = AccessLevel.PRIVATE)
 public record StoreOperationTimeDto(
-        LocalDateTime monOpen,
-        LocalDateTime monClose,
-        LocalDateTime tueOpen,
-        LocalDateTime tueClose,
-        LocalDateTime wedOpen,
-        LocalDateTime wedClose,
-        LocalDateTime thuOpen,
-        LocalDateTime thuClose,
-        LocalDateTime friOpen,
-        LocalDateTime friClose,
-        LocalDateTime satOpen,
-        LocalDateTime satClose,
-        LocalDateTime sunOpen,
-        LocalDateTime sunClose
+        String monOpen,
+        String monClose,
+        String tueOpen,
+        String tueClose,
+        String wedOpen,
+        String wedClose,
+        String thuOpen,
+        String thuClose,
+        String friOpen,
+        String friClose,
+        String satOpen,
+        String satClose,
+        String sunOpen,
+        String sunClose
 ) {
-    public static StoreOperationTimeDto of(final LocalDateTime monOpen,
-                                           final LocalDateTime monClose,
-                                           final LocalDateTime tueOpen,
-                                           final LocalDateTime tueClose,
-                                           final LocalDateTime wedOpen,
-                                           final LocalDateTime wedClose,
-                                           final LocalDateTime thuOpen,
-                                           final LocalDateTime thuClose,
-                                           final LocalDateTime friOpen,
-                                           final LocalDateTime friClose,
-                                           final LocalDateTime satOpen,
-                                           final LocalDateTime satClose,
-                                           final LocalDateTime sunOpen,
-                                           final LocalDateTime sunClose) {
+    public static StoreOperationTimeDto of(final String monOpen,
+                                           final String monClose,
+                                           final String tueOpen,
+                                           final String tueClose,
+                                           final String wedOpen,
+                                           final String wedClose,
+                                           final String thuOpen,
+                                           final String thuClose,
+                                           final String friOpen,
+                                           final String friClose,
+                                           final String satOpen,
+                                           final String satClose,
+                                           final String sunOpen,
+                                           final String sunClose) {
         return StoreOperationTimeDto.builder()
                 .monOpen(monOpen)
                 .monClose(monClose)