diff --git a/src/main/java/com/gpt/geumpumtabackend/study/dto/response/StudySessionResponse.java b/src/main/java/com/gpt/geumpumtabackend/study/dto/response/StudySessionResponse.java
index d012a5b..8a61578 100644
--- a/src/main/java/com/gpt/geumpumtabackend/study/dto/response/StudySessionResponse.java
+++ b/src/main/java/com/gpt/geumpumtabackend/study/dto/response/StudySessionResponse.java
@@ -1,8 +1,10 @@
 package com.gpt.geumpumtabackend.study.dto.response;
 
-public record StudySessionResponse(Long totalStudySession, boolean isStudying) {
+import java.time.LocalDateTime;
 
-    public static StudySessionResponse of(Long totalStudySession, boolean isStudying) {
-        return new StudySessionResponse(totalStudySession, isStudying);
+public record StudySessionResponse(Long totalStudySession, boolean isStudying, LocalDateTime startTime) {
+
+    public static StudySessionResponse of(Long totalStudySession, boolean isStudying, LocalDateTime startTime) {
+        return new StudySessionResponse(totalStudySession, isStudying, startTime);
     }
 }
diff --git a/src/main/java/com/gpt/geumpumtabackend/study/service/StudySessionService.java b/src/main/java/com/gpt/geumpumtabackend/study/service/StudySessionService.java
index 0fdea44..d2e9545 100644
--- a/src/main/java/com/gpt/geumpumtabackend/study/service/StudySessionService.java
+++ b/src/main/java/com/gpt/geumpumtabackend/study/service/StudySessionService.java
@@ -41,9 +41,12 @@ public class StudySessionService {
     public StudySessionResponse getTodayStudySession(Long userId) {
         LocalDateTime startOfDay = LocalDate.now().atStartOfDay();
         LocalDateTime now = LocalDateTime.now();
-        boolean isStudying = studySessionRepository.findByUser_IdAndStatus(userId, StudyStatus.STARTED).isPresent();
+        StudySession activeSession = studySessionRepository.findByUser_IdAndStatus(userId, StudyStatus.STARTED)
+                .orElse(null);
+        boolean isStudying = activeSession != null;
+        LocalDateTime startTime = isStudying ? activeSession.getStartTime() : null;
         Long totalStudySession = studySessionRepository.sumCompletedStudySessionByUserId(userId, startOfDay, now);
-        return StudySessionResponse.of(totalStudySession,isStudying);
+        return StudySessionResponse.of(totalStudySession, isStudying, startTime);
     }
 
     /*