diff --git a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/AppjamtampButton.kt b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/AppjamtampButton.kt
index ab402b473..d9d35ef47 100644
--- a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/AppjamtampButton.kt
+++ b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/AppjamtampButton.kt
@@ -25,7 +25,6 @@
 package org.sopt.official.feature.appjamtamp.component
 
 import androidx.compose.foundation.background
-import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
@@ -35,6 +34,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import org.sopt.official.common.util.noRippleClickable
 import org.sopt.official.designsystem.SoptTheme
 
 @Composable
@@ -42,15 +42,16 @@ internal fun AppjamtampButton(
     text: String,
     onClicked: () -> Unit,
     modifier: Modifier = Modifier,
+    isEnabled: Boolean = true,
 ) {
     Box(
         modifier = modifier
             .fillMaxWidth()
             .background(
-                color = SoptTheme.colors.primary,
+                color = if (isEnabled) SoptTheme.colors.primary else SoptTheme.colors.onSurface300,
                 shape = RoundedCornerShape(9.dp),
             )
-            .clickable(onClick = onClicked),
+            .noRippleClickable(onClick = { if (isEnabled) onClicked() }),
         contentAlignment = Alignment.Center,
     ) {
         Text(
diff --git a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/BackButtonHeader.kt b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/BackButtonHeader.kt
index 78af8bdc9..5b9c367a8 100644
--- a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/BackButtonHeader.kt
+++ b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/component/BackButtonHeader.kt
@@ -38,6 +38,7 @@ import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.res.vectorResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import org.sopt.official.common.util.throttledNoRippleClickable
 import org.sopt.official.designsystem.SoptTheme
 import org.sopt.official.feature.appjamtamp.R
 
@@ -57,7 +58,7 @@ internal fun BackButtonHeader(
             imageVector = ImageVector.vectorResource(R.drawable.ic_back_32),
             contentDescription = null,
             tint = SoptTheme.colors.onSurface10,
-            modifier = Modifier.clickable(onClick = onBackButtonClick)
+            modifier = Modifier.throttledNoRippleClickable(onClick = onBackButtonClick),
         )
 
         Text(
diff --git a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailRoute.kt b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailRoute.kt
index 2a2e51e2b..650ba6e81 100644
--- a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailRoute.kt
+++ b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailRoute.kt
@@ -130,10 +130,11 @@ internal fun MissionDetailRoute(
             }
     }
 
-    LaunchedEffect(!uiState.isLoading, progress) {
-        if (progress >= 0.99f && !uiState.isLoading) {
+    LaunchedEffect(showPostSubmissionBadge, !uiState.isLoading, progress) {
+        if (showPostSubmissionBadge && progress >= 0.99f && !uiState.isLoading) {
             delay(500L)
             viewModel.updateShowPostSubmissionBadge()
+            navigateUp()
         }
     }
 
@@ -148,7 +149,8 @@ internal fun MissionDetailRoute(
             },
             onDatePickerClick = { isDatePickerVisible = true },
             onMemoChange = viewModel::updateContent,
-            onCompleteButtonClick = viewModel::handleSubmit
+            onCompleteButtonClick = viewModel::handleSubmit,
+            isSubmitEnabled = uiState.isSubmitEnabled,
         )
     } else {
         MissionDetailScreen(
@@ -185,7 +187,8 @@ internal fun MissionDetailRoute(
 
                     DetailViewType.EDIT -> viewModel.handleSubmit()
                 }
-            }
+            },
+            isSubmitEnabled = uiState.isSubmitEnabled,
         )
     }
 
@@ -249,7 +252,8 @@ private fun MyEmptyMissionDetailScreen(
     onClickZoomIn: (String) -> Unit,
     onDatePickerClick: () -> Unit,
     onMemoChange: (String) -> Unit,
-    onCompleteButtonClick: () -> Unit
+    onCompleteButtonClick: () -> Unit,
+    isSubmitEnabled: Boolean,
 ) {
     val scrollState = rememberScrollState()
 
@@ -306,6 +310,7 @@ private fun MyEmptyMissionDetailScreen(
         AppjamtampButton(
             text = "미션 완료",
             onClicked = onCompleteButtonClick,
+            isEnabled = isSubmitEnabled,
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(bottom = 20.dp)
@@ -322,7 +327,8 @@ private fun MissionDetailScreen(
     onClickZoomIn: (String) -> Unit,
     onDatePickerClick: () -> Unit,
     onMemoChange: (String) -> Unit,
-    onActionButtonClick: () -> Unit
+    onActionButtonClick: () -> Unit,
+    isSubmitEnabled: Boolean,
 ) {
     val scrollState = rememberScrollState()
     var isEditable by remember(uiState.viewType) { mutableStateOf(uiState.viewType == DetailViewType.EDIT) }
@@ -436,6 +442,7 @@ private fun MissionDetailScreen(
                 AppjamtampButton(
                     text = "미션 완료",
                     onClicked = onActionButtonClick,
+                    isEnabled = isSubmitEnabled,
                     modifier = Modifier
                         .fillMaxWidth()
                         .padding(bottom = 20.dp)
@@ -456,7 +463,8 @@ private fun MyEmptyMissionDetailScreenPreview() {
             onClickZoomIn = {},
             onDatePickerClick = {},
             onMemoChange = {},
-            onCompleteButtonClick = {}
+            onCompleteButtonClick = {},
+            isSubmitEnabled = true,
         )
     }
 }
@@ -473,7 +481,8 @@ private fun MyMissionDetailScreenPreview() {
             onDatePickerClick = {},
             onMemoChange = {},
             onActionButtonClick = {},
-            onToolbarIconClick = {}
+            onToolbarIconClick = {},
+            isSubmitEnabled = true,
         )
     }
 }
diff --git a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailState.kt b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailState.kt
index a5465076e..c333b9279 100644
--- a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailState.kt
+++ b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailState.kt
@@ -51,5 +51,22 @@ internal data class MissionDetailState(
     val viewCount: Int = 0,
 
     val clappers: ImmutableList<StampClapUserModel> = persistentListOf(),
-    val showPostSubmissionBadge: Boolean = false
-)
+    val showPostSubmissionBadge: Boolean = false,
+
+    val initSnapshotImageModel: ImageModel = ImageModel.Empty,
+    val initSnapshotDate: String = "",
+    val initSnapshotContent: String = "",
+) {
+    val isSubmitEnabled: Boolean
+        get() {
+            val commonGuard = !isLoading && content.isNotBlank() && date.isNotBlank() && !imageModel.isEmpty()
+
+            if (!commonGuard) return false
+
+            return when (viewType) {
+                DetailViewType.WRITE -> true
+                DetailViewType.EDIT -> content != initSnapshotContent || date != initSnapshotDate || imageModel != initSnapshotImageModel
+                DetailViewType.READ_ONLY, DetailViewType.COMPLETE -> false
+            }
+        }
+}
diff --git a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailViewModel.kt b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailViewModel.kt
index 8cf7dba61..a86d15327 100644
--- a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailViewModel.kt
+++ b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/missiondetail/MissionDetailViewModel.kt
@@ -129,6 +129,9 @@ internal class MissionDetailViewModel @Inject constructor(
                             imageModel = ImageModel.Remote(stamp.images),
                             date = stamp.activityDate,
                             content = stamp.contents,
+                            initSnapshotImageModel = ImageModel.Remote(stamp.images),
+                            initSnapshotDate = stamp.activityDate,
+                            initSnapshotContent = stamp.contents,
                             teamName = stamp.teamName,
                             stampId = stamp.stampId,
                             writer = User(
@@ -260,7 +263,10 @@ internal class MissionDetailViewModel @Inject constructor(
                         _missionDetailState.update {
                             it.copy(
                                 isLoading = false,
-                                viewType = DetailViewType.COMPLETE
+                                viewType = DetailViewType.COMPLETE,
+                                initSnapshotImageModel = ImageModel.Remote(imageModel.url),
+                                initSnapshotDate = date,
+                                initSnapshotContent = content,
                             )
                         }
                     }.onFailure { e ->
diff --git a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/ranking/component/Top3RecentRankingMission.kt b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/ranking/component/Top3RecentRankingMission.kt
index c144f4454..7ce306e3b 100644
--- a/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/ranking/component/Top3RecentRankingMission.kt
+++ b/feature/appjamtamp/src/main/java/org/sopt/official/feature/appjamtamp/ranking/component/Top3RecentRankingMission.kt
@@ -157,24 +157,27 @@ private fun String?.toRelativeTime(): String {
 
     val dateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.KOREA)
     dateFormat.timeZone = TimeZone.getTimeZone("Asia/Seoul")
+    val monthDayFormat = SimpleDateFormat("M월d일", Locale.KOREA).apply {
+        timeZone = TimeZone.getTimeZone("Asia/Seoul")
+    }
 
-    val date = dateFormat.parse(this) ?: return ""
+    val date = runCatching { dateFormat.parse(this) }.getOrNull() ?: return ""
     val currentDate = Date()
 
     val diffMillis = currentDate.time - date.time
-    if (diffMillis < 0) return "1분 전"
+    if (diffMillis < 0) return "방금 전"
 
     val minutes = TimeUnit.MILLISECONDS.toMinutes(diffMillis)
     val hours = TimeUnit.MILLISECONDS.toHours(diffMillis)
+    val days = TimeUnit.MILLISECONDS.toDays(diffMillis)
 
     return when {
-        minutes == 0L -> "1분 전"
-        minutes in 1..59 -> "${minutes}분 전"
-        hours in 1..24 -> "${hours}시간 전"
-        else -> {
-            val days = TimeUnit.MILLISECONDS.toDays(diffMillis)
-            "${days}일 전"
-        }
+        minutes < 10L -> "방금 전"
+        minutes < 60L -> "${minutes}분 전"
+        hours < 25L -> "${hours}시간 전"
+        days < 7L -> "${days}일 전"
+        days < 35L -> "${days / 7}주 전"
+        else -> monthDayFormat.format(date)
     }
 }