diff --git a/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/common/view/calendar/TimePicker.kt b/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/common/view/calendar/TimePicker.kt
index 2307f99d..b56a6278 100644
--- a/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/common/view/calendar/TimePicker.kt
+++ b/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/common/view/calendar/TimePicker.kt
@@ -46,10 +46,17 @@ fun TimePicker(
         color = Gray700,
         fontWeight = FontWeight.SemiBold
     )
-
-    var hourValue by remember { mutableIntStateOf(if(localTime.hour==0) 12 else localTime.hour) }
+    var timeType by remember {
+        mutableStateOf(if (localTime.hour >= 12) TimePickerType.PM else TimePickerType.AM)
+    }
+    var hourValue by remember {
+        mutableIntStateOf(
+            if (localTime.hour > 12) localTime.hour - 12
+            else if (localTime.hour == 0) 12
+            else localTime.hour
+        )
+    }
     var minuteValue by remember { mutableIntStateOf(localTime.minute) }
-    var timeType by remember { mutableStateOf(TimePickerType.AM) }
 
     BottomSheetScreen(
         onDismissRequest = onDismissRequest,
@@ -86,12 +93,13 @@ fun TimePicker(
                     modifier = Modifier
                         .align(Alignment.CenterEnd)
                         .clickable {
+                            val transHour = when (timeType) {
+                                TimePickerType.AM -> if (hourValue == 12) -12 else 0
+                                TimePickerType.PM -> if (hourValue == 12) 0 else 12
+                            }
                             onConfirm(
                                 LocalTime(
-                                    hour = hourValue + when (timeType) {
-                                        TimePickerType.AM -> if (hourValue==12) -12 else 0
-                                        TimePickerType.PM -> if (hourValue==12) 0 else 12
-                                    },
+                                    hour = hourValue + transHour,
                                     minute = minuteValue
                                 )
                             )
@@ -105,7 +113,7 @@ fun TimePicker(
             ) {
                 NumberPicker(
                     value = hourValue,
-                    range = 1.. 12,
+                    range = 1..12,
                     dividersColor = Primary3,
                     textStyle = timeTextStyle,
                     onValueChange = {
@@ -115,7 +123,7 @@ fun TimePicker(
                 Spacer(modifier = Modifier.width(20.dp))
                 NumberPicker(
                     value = minuteValue,
-                    range = 0..if (hourValue == 12 && timeType == TimePickerType.PM) 0 else 59,
+                    range = 0..59,
                     dividersColor = Primary3,
                     textStyle = timeTextStyle,
                     onValueChange = {
diff --git a/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/ui/main/home/schedule/add/ScheduleAddScreen.kt b/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/ui/main/home/schedule/add/ScheduleAddScreen.kt
index 638e6453..c4254ce9 100644
--- a/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/ui/main/home/schedule/add/ScheduleAddScreen.kt
+++ b/presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/ui/main/home/schedule/add/ScheduleAddScreen.kt
@@ -87,6 +87,7 @@ import kotlinx.datetime.TimeZone
 import kotlinx.datetime.minus
 import kotlinx.datetime.number
 import kotlinx.datetime.todayIn
+import timber.log.Timber
 
 @Composable
 fun ScheduleAddScreen(
@@ -248,7 +249,7 @@ fun ScheduleAddScreen(
         val fixedHour = if (it.hour == 0) 24 else it.hour
         val timeHour = (fixedHour - 1) % 12 + 1
         val timeMinute = it.minute
-        val timeAmPm = if (fixedHour < 12) "오전" else "오후"
+        val timeAmPm = if (fixedHour < 12 || fixedHour == 24) "오전" else "오후"
         runCatching {
             String.format(format, timeAmPm, timeHour, timeMinute)
         }.onFailure { exception ->