diff --git a/backend/src/main/java/com/votogether/domain/notice/dto/response/NoticeResponse.java b/backend/src/main/java/com/votogether/domain/notice/dto/response/NoticeResponse.java
index 285eaeb08..124ffd3a8 100644
--- a/backend/src/main/java/com/votogether/domain/notice/dto/response/NoticeResponse.java
+++ b/backend/src/main/java/com/votogether/domain/notice/dto/response/NoticeResponse.java
@@ -1,5 +1,6 @@
 package com.votogether.domain.notice.dto.response;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import com.votogether.domain.notice.entity.Notice;
 import io.swagger.v3.oas.annotations.media.Schema;
 import java.time.LocalDateTime;
@@ -22,9 +23,11 @@ public record NoticeResponse(
         String content,
 
         @Schema(description = "공지사항 배너 마감기한", example = "2023-12-25 23:59")
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm")
         LocalDateTime deadline,
 
         @Schema(description = "공지사항 생성시각", example = "2023-12-25 23:59")
+        @JsonFormat(pattern = "yyyy-MM-dd HH:mm")
         LocalDateTime createdAt
 ) {
 
diff --git a/backend/src/test/java/com/votogether/domain/notice/controller/NoticeQueryControllerTest.java b/backend/src/test/java/com/votogether/domain/notice/controller/NoticeQueryControllerTest.java
index 0e834508b..729340a80 100644
--- a/backend/src/test/java/com/votogether/domain/notice/controller/NoticeQueryControllerTest.java
+++ b/backend/src/test/java/com/votogether/domain/notice/controller/NoticeQueryControllerTest.java
@@ -13,6 +13,7 @@
 import com.votogether.test.ControllerTest;
 import io.restassured.module.mockmvc.RestAssuredMockMvc;
 import java.time.LocalDateTime;
+import java.time.temporal.ChronoUnit;
 import java.util.List;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
@@ -52,8 +53,8 @@ void getProgressNotice() throws Exception {
                 "bannerTitle",
                 "bannerSubtitle",
                 "content",
-                LocalDateTime.now().plusDays(1),
-                LocalDateTime.now()
+                LocalDateTime.now().plusDays(1).truncatedTo(ChronoUnit.MINUTES),
+                LocalDateTime.now().truncatedTo(ChronoUnit.MINUTES)
         );
         given(noticeQueryService.getProgressNotice()).willReturn(expected);
 
@@ -86,8 +87,8 @@ void getNotices() throws Exception {
                     "bannerTitle",
                     "bannerSubtitle",
                     "content",
-                    LocalDateTime.now().plusDays(1),
-                    LocalDateTime.now()
+                    LocalDateTime.now().plusDays(1).truncatedTo(ChronoUnit.MINUTES),
+                    LocalDateTime.now().truncatedTo(ChronoUnit.MINUTES)
             );
             NoticePageResponse expected = new NoticePageResponse(1, 0, List.of(noticeResponse));
             given(noticeQueryService.getNotices(anyInt())).willReturn(expected);
@@ -153,8 +154,8 @@ void getNotice() throws Exception {
                     "bannerTitle",
                     "bannerSubtitle",
                     "content",
-                    LocalDateTime.now().plusDays(1),
-                    LocalDateTime.now()
+                    LocalDateTime.now().plusDays(1).truncatedTo(ChronoUnit.MINUTES),
+                    LocalDateTime.now().truncatedTo(ChronoUnit.MINUTES)
             );
             given(noticeQueryService.getNotice(anyLong())).willReturn(expected);