diff --git a/src/main/kotlin/dsm/pick2024/domain/attendance/domain/service/AttendanceService.kt b/src/main/kotlin/dsm/pick2024/domain/attendance/domain/service/AttendanceService.kt
index 8718e2d8..b8d85e3f 100644
--- a/src/main/kotlin/dsm/pick2024/domain/attendance/domain/service/AttendanceService.kt
+++ b/src/main/kotlin/dsm/pick2024/domain/attendance/domain/service/AttendanceService.kt
@@ -19,9 +19,9 @@ class AttendanceService {
             LocalTime.of(13, 30) to LocalTime.of(14, 40), // 5교시
             LocalTime.of(14, 30) to LocalTime.of(15, 30), // 6교시
             LocalTime.of(15, 30) to LocalTime.of(16, 30), // 7교시
-            LocalTime.of(16, 40) to LocalTime.of(18, 40), // 8교시
+            LocalTime.of(16, 30) to LocalTime.of(18, 40), // 8교시
             LocalTime.of(18, 40) to LocalTime.of(19, 40), // 9교시
-            LocalTime.of(19, 40) to LocalTime.of(20, 30) // 10교시
+            LocalTime.of(19, 40) to LocalTime.of(20, 31) // 10교시
         )
         val periodNames = listOf(
             "1교시", "2교시", "3교시", "4교시", "5교시",