diff --git a/project.godot b/project.godot
index 10b9fb3..803f5e6 100644
--- a/project.godot
+++ b/project.godot
@@ -18,6 +18,7 @@ config/features=PackedStringArray("4.7", "Forward Plus")
 
 GameState="*res://src/Core/GameState.gd"
 TimeSystem="*res://src/Core/TimeSystem.gd"
+Settings="*res://src/Core/Settings.gd"
 
 [display]
 
diff --git a/src/Core/GameState.gd b/src/Core/GameState.gd
index d57484f..ac5eb6f 100644
--- a/src/Core/GameState.gd
+++ b/src/Core/GameState.gd
@@ -5,9 +5,17 @@ enum GameMode { NEW_GAME, LOAD_GAME }
 var mode: GameMode = GameMode.NEW_GAME
 var save_id: String = ""
 
+# 游戏内时间（12 月 × 30 天 = 360 天/年）
+var year: int = 1
+var month: int = 1
+var day: int = 1
+
 func request_new_game() -> void:
 	mode = GameMode.NEW_GAME
 	save_id = ""
+	year = 1
+	month = 1
+	day = 1
 
 func request_load_game(id: String) -> void:
 	mode = GameMode.LOAD_GAME
diff --git a/src/Core/MainGame.gd b/src/Core/MainGame.gd
index af08020..47f5a81 100644
--- a/src/Core/MainGame.gd
+++ b/src/Core/MainGame.gd
@@ -1,6 +1,8 @@
 extends Node
 
 func _ready() -> void:
+	TimeSystem.speed_index = Settings.default_speed_index
+	TimeSystem.speed = TimeSystem.SPEEDS[TimeSystem.speed_index]
 	pass
 
 
diff --git a/src/Core/Settings.gd b/src/Core/Settings.gd
new file mode 100644
index 0000000..da88788
--- /dev/null
+++ b/src/Core/Settings.gd
@@ -0,0 +1,14 @@
+extends Node
+
+const SAVE_PATH := "user://settings.cfg"
+var default_speed_index := 1   # 默认 5x
+
+func load_settings() -> void:
+	var cfg := ConfigFile.new()
+	if cfg.load(SAVE_PATH) == OK:
+		default_speed_index = cfg.get_value("time", "speed_index", 1)
+
+func save_settings() -> void:
+	var cfg := ConfigFile.new()
+	cfg.set_value("time", "speed_index", default_speed_index)
+	cfg.save(SAVE_PATH)
diff --git a/src/Core/Settings.gd.uid b/src/Core/Settings.gd.uid
new file mode 100644
index 0000000..12c8974
--- /dev/null
+++ b/src/Core/Settings.gd.uid
@@ -0,0 +1 @@
+uid://exwk46qy4x6t
diff --git a/src/Core/TimeSystem.gd b/src/Core/TimeSystem.gd
index 1d7d0ff..fc0f886 100644
--- a/src/Core/TimeSystem.gd
+++ b/src/Core/TimeSystem.gd
@@ -2,11 +2,17 @@ extends Node
 
 signal day_passed(year, month, day)
 
+const SPEEDS := [1.0, 5.0, 20.0]
+var speed_index := 0
+
 const DAY_LENGTH := 5.0
 var speed := 1.0
+var paused := false
 var _elapsed := 0.0
 
 func _process(delta: float) -> void:
+	if paused:
+		return
 	_elapsed += delta * speed
 	if _elapsed >= DAY_LENGTH:
 		_elapsed -= DAY_LENGTH
@@ -16,3 +22,19 @@ func _advance() -> void:
 	# GameState.year, GameState.month, GameState.day 推进
 	GameState.day = GameState.day + 1;
 	day_passed.emit()
+
+func cycle_speed() -> float:
+	speed_index = (speed_index + 1) % SPEEDS.size()
+	speed = SPEEDS[speed_index]
+	return speed
+
+func set_speed_index(index: int) -> void:
+	speed_index = clampi(index, 0, SPEEDS.size() - 1)
+	speed = SPEEDS[speed_index]
+
+func toggle_pause() -> bool:
+	paused = not paused
+	return paused
+
+func get_speed_label() -> String:
+	return "x%d" % int(speed)
diff --git a/src/UI/HUD/TopBarHUD.tscn b/src/UI/HUD/TopBarHUD.tscn
index 6ac7f6f..770f57a 100644
--- a/src/UI/HUD/TopBarHUD.tscn
+++ b/src/UI/HUD/TopBarHUD.tscn
@@ -61,6 +61,35 @@ size_flags_horizontal = 3
 size_flags_vertical = 8
 label_settings = SubResource("LabelSettings_bn2o5")
 
+[node name="SpeedGroup" type="HBoxContainer" parent="HBoxContainer" unique_id=2144893126]
+layout_mode = 2
+size_flags_horizontal = 3
+theme_override_constants/separation = 4
+
+[node name="Button_Pause" type="Button" parent="HBoxContainer/SpeedGroup" unique_id=2144893127]
+custom_minimum_size = Vector2(64, 0)
+layout_mode = 2
+theme_override_fonts/font = ExtResource("1_pa2rn")
+text = "暂停"
+
+[node name="Button_Speed1" type="Button" parent="HBoxContainer/SpeedGroup" unique_id=2144893128]
+custom_minimum_size = Vector2(48, 0)
+layout_mode = 2
+theme_override_fonts/font = ExtResource("1_pa2rn")
+text = "1x"
+
+[node name="Button_Speed5" type="Button" parent="HBoxContainer/SpeedGroup" unique_id=2144893129]
+custom_minimum_size = Vector2(48, 0)
+layout_mode = 2
+theme_override_fonts/font = ExtResource("1_pa2rn")
+text = "5x"
+
+[node name="Button_Speed20" type="Button" parent="HBoxContainer/SpeedGroup" unique_id=2144893130]
+custom_minimum_size = Vector2(48, 0)
+layout_mode = 2
+theme_override_fonts/font = ExtResource("1_pa2rn")
+text = "20x"
+
 [node name="placeholder_1" type="Label" parent="HBoxContainer" unique_id=1042446504]
 layout_mode = 2
 size_flags_horizontal = 3
@@ -117,4 +146,5 @@ size_flags_horizontal = 3
 theme_override_fonts/font = ExtResource("1_pa2rn")
 text = "返回"
 
+[connection signal="button_up" from="HBoxContainer/SpeedGroup/Button_Pause" to="." method="_on_button_pause_button_up"]
 [connection signal="button_up" from="HBoxContainer/Button_Return" to="." method="_on_button_return_button_up"]
diff --git a/src/UI/HUD/top_bar_hud.gd b/src/UI/HUD/top_bar_hud.gd
index e2035a2..9342999 100644
--- a/src/UI/HUD/top_bar_hud.gd
+++ b/src/UI/HUD/top_bar_hud.gd
@@ -2,7 +2,31 @@ extends Control
 
 signal sign_return_mainmenu
 
+const SPEED_BUTTONS := ["Button_Speed1", "Button_Speed5", "Button_Speed20"]
+const ACTIVE_COLOR := Color(1.0, 1.0, 1.0)
+const INACTIVE_COLOR := Color(0.55, 0.55, 0.55)
+
+func _ready() -> void:
+	for i in SPEED_BUTTONS.size():
+		var btn: Button = $HBoxContainer/SpeedGroup.get_node(SPEED_BUTTONS[i])
+		btn.button_up.connect(_on_speed_button_up.bind(i))
+	_update_speed_ui()
 
 func _on_button_return_button_up() -> void:
 	sign_return_mainmenu.emit()
-	pass # Replace with function body.
+
+func _on_button_pause_button_up() -> void:
+	TimeSystem.toggle_pause()
+	_update_speed_ui()
+
+func _on_speed_button_up(index: int) -> void:
+	TimeSystem.set_speed_index(index)
+	_update_speed_ui()
+
+func _update_speed_ui() -> void:
+	var pause_btn: Button = $HBoxContainer/SpeedGroup/Button_Pause
+	pause_btn.text = "继续" if TimeSystem.paused else "暂停"
+	for i in SPEED_BUTTONS.size():
+		var btn: Button = $HBoxContainer/SpeedGroup.get_node(SPEED_BUTTONS[i])
+		var active := (i == TimeSystem.speed_index) and not TimeSystem.paused
+		btn.modulate = ACTIVE_COLOR if active else INACTIVE_COLOR