diff --git a/evoGUI.lua b/evoGUI.lua
index 9698c2d..53f7301 100644
--- a/evoGUI.lua
+++ b/evoGUI.lua
@@ -87,6 +87,13 @@ function evogui.create_player_globals(player)
             ['extra_precision'] = false,
         }
     end
+
+    if not player_settings.sensor_settings['play_time'] then
+        player_settings.sensor_settings['play_time'] = {
+            ['show_days'] = true,
+            ['show_seconds'] = true,
+        }
+    end
 end
 
 
diff --git a/locale/en/locale.cfg b/locale/en/locale.cfg
index 9effca1..b885833 100644
--- a/locale/en/locale.cfg
+++ b/locale/en/locale.cfg
@@ -12,6 +12,11 @@ sensor.evolution_factor.settings.extra_precision=Show four decimals (x.1234%) in
 
 sensor.play_time.name=Time played
 sensor.play_time.format=Play time: __1__.
+sensor.play_time.single_day_fragment=1 day,
+sensor.play_time.multi_day_fragment=__1__ days,
+sensor.play_time.settings.title=Playing time settings
+sensor.play_time.settings.show_days=Show days ("2 days, 01:00" instead of "49:00")
+sensor.play_time.settings.show_seconds=Show seconds ("hh:mm:ss" instead of "hh:mm").
 
 sensor.player_locations.name=Player locations
 sensor.player_locations.format=Players:
diff --git a/value_sensors/play_time.lua b/value_sensors/play_time.lua
index 2077a7c..7955a12 100644
--- a/value_sensors/play_time.lua
+++ b/value_sensors/play_time.lua
@@ -2,13 +2,56 @@ require "template"
 
 local sensor = ValueSensor.new("play_time")
 
+
 function sensor:get_line()
     local play_time_seconds = math.floor(game.tick/60)
     local play_time_minutes = math.floor(play_time_seconds/60)
     local play_time_hours = math.floor(play_time_minutes/60)
+    local play_time_days = math.floor(play_time_hours/24)
+
+    local desc = {""}
+    if play_time_days > 0 and self.settings.show_days then
+        if play_time_days == 1 then
+            table.insert(desc, {"sensor.play_time.single_day_fragment"})
+        else
+            table.insert(desc, {"sensor.play_time.multi_day_fragment", tostring(play_time_days)})
+        end
+        table.insert(desc, ' ')
+        play_time_hours = play_time_hours % 24
+    end
+
+    if self.settings.show_seconds then
+        table.insert(desc, string.format("%d:%02d:%02d", play_time_hours, play_time_minutes % 60, play_time_seconds % 60))
+    else
+        table.insert(desc, string.format("%d:%02d", play_time_hours, play_time_minutes % 60))
+    end
+
+    return {self.format_key, desc}
+end
 
-    return {self.format_key,
-            string.format("%d:%02d:%02d", play_time_hours, play_time_minutes % 60, play_time_seconds % 60)}
+
+function sensor:settings_gui(player_index)
+    local player = game.get_player(player_index)
+    local sensor_settings = global.evogui[player.name].sensor_settings[self.name]
+    local root_name = self:settings_root_name()
+
+    local root = player.gui.center.add{type="frame",
+                                       name=root_name,
+                                       direction="vertical",
+                                       caption={"sensor.play_time.settings.title"}}
+    root.add{type="checkbox", name="evogui_show_days",
+             caption={"sensor.play_time.settings.show_days"},
+             state=sensor_settings.show_days}
+    evogui.on_click.evogui_show_days = self:make_on_click_checkbox_handler("show_days")
+
+    root.add{type="checkbox", name="evogui_show_seconds",
+             caption={"sensor.play_time.settings.show_seconds"},
+             state=sensor_settings.show_seconds}
+    evogui.on_click.evogui_show_seconds = self:make_on_click_checkbox_handler("show_seconds")
+
+    local btn_close = root.add{type="button", name="evogui_custom_sensor_close", caption={"settings_close"}}
+    evogui.on_click[btn_close.name] = function(event) self:close_settings_gui(player_index) end
 end
 
+
 ValueSensor.register(sensor)