diff --git a/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRepetitionRequest.java b/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRepetitionRequest.java
index bb7ee76a..4ba24fae 100644
--- a/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRepetitionRequest.java
+++ b/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRepetitionRequest.java
@@ -23,14 +23,14 @@ public record MentorSlotRepetitionRequest(
     @NotEmpty
     List<DayOfWeek> daysOfWeek,
 
-    @Schema(description = "시작 시간", example = "HH:mm:ss")
+    @Schema(description = "시작 시간", example = "HH:mm")
     @NotNull
-    @JsonFormat(pattern = "HH:mm:ss")
+    @JsonFormat(pattern = "HH:mm")
     LocalTime startTime,
 
-    @Schema(description = "종료 시간", example = "HH:mm:ss")
+    @Schema(description = "종료 시간", example = "HH:mm")
     @NotNull
-    @JsonFormat(pattern = "HH:mm:ss")
+    @JsonFormat(pattern = "HH:mm")
     LocalTime endTime
 ){
 }
diff --git a/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRequest.java b/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRequest.java
index 109ffa28..3245797d 100644
--- a/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRequest.java
+++ b/back/src/main/java/com/back/domain/mentoring/slot/dto/request/MentorSlotRequest.java
@@ -10,11 +10,11 @@ public record MentorSlotRequest(
     @NotNull
     Long mentorId,
 
-    @Schema(description = "시작 일시", example = "yyyy-MM-ddTHH:mm:ss")
+    @Schema(description = "시작 일시", example = "yyyy-MM-ddTHH:mm")
     @NotNull
     LocalDateTime startDateTime,
 
-    @Schema(description = "종료 일시", example = "yyyy-MM-ddTHH:mm:ss")
+    @Schema(description = "종료 일시", example = "yyyy-MM-ddTHH:mm")
     @NotNull
     LocalDateTime endDateTime
 ) {
diff --git a/back/src/test/java/com/back/domain/mentoring/slot/controller/MentorSlotControllerTest.java b/back/src/test/java/com/back/domain/mentoring/slot/controller/MentorSlotControllerTest.java
index d3baa83a..74896f4a 100644
--- a/back/src/test/java/com/back/domain/mentoring/slot/controller/MentorSlotControllerTest.java
+++ b/back/src/test/java/com/back/domain/mentoring/slot/controller/MentorSlotControllerTest.java
@@ -247,8 +247,8 @@ void createMentorSlotRepetitionSuccess() throws Exception {
             "repeatStartDate": "%s",
             "repeatEndDate": "%s",
             "daysOfWeek": ["MONDAY", "WEDNESDAY", "FRIDAY"],
-            "startTime": "10:00:00",
-            "endTime": "11:00:00"
+            "startTime": "10:00",
+            "endTime": "11:00"
         }
         """.formatted(
             startDate.format(DateTimeFormatter.ISO_LOCAL_DATE),