diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index fc9ccde..48d759b 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -30,6 +30,10 @@
         <activity
             android:name=".ToolsActivity"
             android:exported="false" />
+
+        <activity
+            android:name=".DateCheckerActivity"
+            android:exported="false" />
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/kotlin/plus/rua/project/DateCheckerActivity.kt b/app/src/main/kotlin/plus/rua/project/DateCheckerActivity.kt
new file mode 100644
index 0000000..da23fe8
--- /dev/null
+++ b/app/src/main/kotlin/plus/rua/project/DateCheckerActivity.kt
@@ -0,0 +1,40 @@
+package plus.rua.project
+
+import android.os.Build
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import plus.rua.project.ui.DateCheckerScreen
+
+class DateCheckerActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        enableEdgeToEdge()
+        super.onCreate(savedInstanceState)
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+            overrideActivityTransition(
+                OVERRIDE_TRANSITION_OPEN,
+                R.anim.slide_in_right,
+                R.anim.slide_out_left
+            )
+            overrideActivityTransition(
+                OVERRIDE_TRANSITION_CLOSE,
+                R.anim.slide_in_left,
+                R.anim.slide_out_right
+            )
+        }
+
+        setContent {
+            DateCheckerScreen(
+                onBack = {
+                    finish()
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+                        @Suppress("DEPRECATION")
+                        overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right)
+                    }
+                }
+            )
+        }
+    }
+}
diff --git a/app/src/main/kotlin/plus/rua/project/ToolsActivity.kt b/app/src/main/kotlin/plus/rua/project/ToolsActivity.kt
index e7b451d..b35b370 100644
--- a/app/src/main/kotlin/plus/rua/project/ToolsActivity.kt
+++ b/app/src/main/kotlin/plus/rua/project/ToolsActivity.kt
@@ -1,5 +1,6 @@
 package plus.rua.project
 
+import android.content.Intent
 import android.os.Build
 import android.os.Bundle
 import androidx.activity.ComponentActivity
@@ -33,6 +34,13 @@ class ToolsActivity : ComponentActivity() {
                         @Suppress("DEPRECATION")
                         overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right)
                     }
+                },
+                onNavigateToDateChecker = {
+                    startActivity(Intent(this, DateCheckerActivity::class.java))
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+                        @Suppress("DEPRECATION")
+                        overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left)
+                    }
                 }
             )
         }
diff --git a/core/src/main/kotlin/plus/rua/project/ui/DateCheckerScreen.kt b/core/src/main/kotlin/plus/rua/project/ui/DateCheckerScreen.kt
new file mode 100644
index 0000000..c97e73d
--- /dev/null
+++ b/core/src/main/kotlin/plus/rua/project/ui/DateCheckerScreen.kt
@@ -0,0 +1,76 @@
+package plus.rua.project.ui
+
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.graphics.StrokeCap
+import androidx.compose.ui.unit.dp
+
+/**
+ * 日期检查器页面。
+ *
+ * @param onBack 返回回调
+ * @param modifier 布局修饰符
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun DateCheckerScreen(
+    onBack: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = { Text("日期检查器") },
+                navigationIcon = {
+                    IconButton(onClick = onBack) {
+                        val arrowColor = MaterialTheme.colorScheme.onSurface
+                        Canvas(modifier = Modifier.size(24.dp)) {
+                            val strokeWidth = 2.dp.toPx()
+                            drawLine(
+                                color = arrowColor,
+                                start = Offset(size.width * 0.75f, size.height * 0.15f),
+                                end = Offset(size.width * 0.25f, size.height * 0.5f),
+                                strokeWidth = strokeWidth,
+                                cap = StrokeCap.Round
+                            )
+                            drawLine(
+                                color = arrowColor,
+                                start = Offset(size.width * 0.25f, size.height * 0.5f),
+                                end = Offset(size.width * 0.75f, size.height * 0.85f),
+                                strokeWidth = strokeWidth,
+                                cap = StrokeCap.Round
+                            )
+                        }
+                    }
+                }
+            )
+        },
+        modifier = modifier
+    ) { innerPadding ->
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(innerPadding),
+            contentAlignment = Alignment.Center
+        ) {
+            Text(
+                text = "日期检查器",
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+    }
+}
diff --git a/core/src/main/kotlin/plus/rua/project/ui/ToolsScreen.kt b/core/src/main/kotlin/plus/rua/project/ui/ToolsScreen.kt
index f8e5658..8335906 100644
--- a/core/src/main/kotlin/plus/rua/project/ui/ToolsScreen.kt
+++ b/core/src/main/kotlin/plus/rua/project/ui/ToolsScreen.kt
@@ -1,10 +1,17 @@
 package plus.rua.project.ui
 
 import androidx.compose.foundation.Canvas
-import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
@@ -12,7 +19,6 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.StrokeCap
@@ -22,12 +28,14 @@ import androidx.compose.ui.unit.dp
  * 工具页面，提供实用工具功能入口。
  *
  * @param onBack 返回回调
+ * @param onNavigateToDateChecker 跳转到日期检查器回调
  * @param modifier 布局修饰符
  */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun ToolsScreen(
     onBack: () -> Unit,
+    onNavigateToDateChecker: () -> Unit,
     modifier: Modifier = Modifier
 ) {
     Scaffold(
@@ -60,17 +68,41 @@ fun ToolsScreen(
         },
         modifier = modifier
     ) { innerPadding ->
-        Box(
+        Column(
             modifier = Modifier
                 .fillMaxSize()
-                .padding(innerPadding),
-            contentAlignment = Alignment.Center
+                .padding(innerPadding)
+                .padding(horizontal = 16.dp, vertical = 12.dp)
         ) {
-            Text(
-                text = "敬请期待",
-                style = MaterialTheme.typography.bodyLarge,
-                color = MaterialTheme.colorScheme.onSurfaceVariant
+            ToolItem(
+                title = "日期检查器",
+                onClick = onNavigateToDateChecker
             )
         }
     }
 }
+
+@Composable
+private fun ToolItem(
+    title: String,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Card(
+        shape = RoundedCornerShape(16.dp),
+        colors = CardDefaults.cardColors(
+            containerColor = MaterialTheme.colorScheme.surfaceContainerHigh
+        ),
+        elevation = CardDefaults.cardElevation(defaultElevation = 0.dp),
+        modifier = modifier
+            .fillMaxWidth()
+            .clickable(onClick = onClick)
+    ) {
+        Text(
+            text = title,
+            style = MaterialTheme.typography.bodyLarge,
+            color = MaterialTheme.colorScheme.onSurface,
+            modifier = Modifier.padding(horizontal = 20.dp, vertical = 18.dp)
+        )
+    }
+}