diff --git a/src/lang/extra/english.txt b/src/lang/extra/english.txt
index 7d2f12c88c..721f4d643f 100644
--- a/src/lang/extra/english.txt
+++ b/src/lang/extra/english.txt
@@ -782,6 +782,9 @@ STR_CONFIG_SETTING_TIMETABLE_IN_TICKS_HELPTEXT                  :Show travel tim
 
 STR_CONFIG_SETTING_PATHFINDER_FOR_TRAINS_HELPTEXT_EXTRA         :{STRING}{}Various features require use of the YAPF pathfinder, including: routing restrictions (all pathfinder and reservation related actions), reverse at waypoint/signal and drive through train depots.
 
+STR_CONFIG_SETTING_DISABLED_TIMEKEEPING_MODE_CALENDAR           :{RED}[Setting disabled in calendar timekeeping mode]
+STR_CONFIG_SETTING_DISABLED_TIMEKEEPING_MODE_WALLCLOCK          :{RED}[Setting disabled in wallclock timekeeping mode]
+
 STR_CHEAT_EDIT_MONEY_QUERY_CAPT                                 :{WHITE}Increase or decrease money
 STR_CHEAT_INFLATION_COST                                        :{LTBLUE}Change inflation cost factor: {ORANGE}{DECIMAL}
 STR_CHEAT_INFLATION_COST_QUERY_CAPT                             :{WHITE}Change inflation cost factor
diff --git a/src/settings.cpp b/src/settings.cpp
index f053fb5479..3f25c15804 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -2259,7 +2259,7 @@ static bool TownCargoScaleGUI(SettingOnGuiCtrlData &data)
 {
 	switch (data.type) {
 		case SOGCT_VALUE_DPARAMS:
-			SetDParam(data.offset, STR_CONFIG_SETTING_CARGO_SCALE_VALUE_MONTHLY + GetGameSettings().economy.town_cargo_scale_mode);
+			if (!EconTime::UsingWallclockUnits(_game_mode == GM_MENU)) SetDParam(data.offset, STR_CONFIG_SETTING_CARGO_SCALE_VALUE_MONTHLY + GetGameSettings().economy.town_cargo_scale_mode);
 			return true;
 
 		default:
@@ -2276,7 +2276,7 @@ static bool IndustryCargoScaleGUI(SettingOnGuiCtrlData &data)
 			return true;
 
 		case SOGCT_VALUE_DPARAMS:
-			SetDParam(data.offset, STR_CONFIG_SETTING_CARGO_SCALE_VALUE_MONTHLY + GetGameSettings().economy.industry_cargo_scale_mode);
+			if (!EconTime::UsingWallclockUnits(_game_mode == GM_MENU)) SetDParam(data.offset, STR_CONFIG_SETTING_CARGO_SCALE_VALUE_MONTHLY + GetGameSettings().economy.industry_cargo_scale_mode);
 			return true;
 
 		default:
@@ -2292,6 +2292,38 @@ static bool IndustryCargoScaleModeGUI(SettingOnGuiCtrlData &data)
 			data.text = STR_CONFIG_SETTING_INDUSTRY_CARGO_SCALE_MODE_HELPTEXT_EXTRA;
 			return true;
 
+		default:
+			return WallclockModeDisabledGUI(data);
+	}
+}
+
+static bool CalendarModeDisabledGUI(SettingOnGuiCtrlData &data)
+{
+	switch (data.type) {
+		case SOGCT_VALUE_DPARAMS:
+			if (!EconTime::UsingWallclockUnits(_game_mode == GM_MENU)) SetDParam(data.offset, STR_CONFIG_SETTING_DISABLED_TIMEKEEPING_MODE_CALENDAR);
+			return true;
+
+		case SOGCT_GUI_DISABLE:
+			if (!EconTime::UsingWallclockUnits(_game_mode == GM_MENU)) data.val = 1;
+			return true;
+
+		default:
+			return false;
+	}
+}
+
+static bool WallclockModeDisabledGUI(SettingOnGuiCtrlData &data)
+{
+	switch (data.type) {
+		case SOGCT_VALUE_DPARAMS:
+			if (EconTime::UsingWallclockUnits(_game_mode == GM_MENU)) SetDParam(data.offset, STR_CONFIG_SETTING_DISABLED_TIMEKEEPING_MODE_WALLCLOCK);
+			return true;
+
+		case SOGCT_GUI_DISABLE:
+			if (EconTime::UsingWallclockUnits(_game_mode == GM_MENU)) data.val = 1;
+			return true;
+
 		default:
 			return false;
 	}
diff --git a/src/table/settings/economy_settings.ini b/src/table/settings/economy_settings.ini
index aed82aa06f..04f7808c43 100644
--- a/src/table/settings/economy_settings.ini
+++ b/src/table/settings/economy_settings.ini
@@ -25,6 +25,8 @@ static bool OrderTownGrowthRate(SettingOnGuiCtrlData &data);
 static bool TownCargoScaleGUI(SettingOnGuiCtrlData &data);
 static bool IndustryCargoScaleGUI(SettingOnGuiCtrlData &data);
 static bool IndustryCargoScaleModeGUI(SettingOnGuiCtrlData &data);
+static bool CalendarModeDisabledGUI(SettingOnGuiCtrlData &data);
+static bool WallclockModeDisabledGUI(SettingOnGuiCtrlData &data);
 
 static const SettingTable _economy_settings{
 [post-amble]
@@ -234,6 +236,7 @@ strval   = STR_JUST_COMMA
 post_cb  = DayLengthChanged
 cat      = SC_BASIC
 extver   = SlXvFeatureTest(XSLFTO_AND, XSLFI_VARIABLE_DAY_LENGTH)
+guiproc  = WallclockModeDisabledGUI
 patxname = ""variable_day_length.economy.day_length_factor""
 
 [SDT_BOOL]
@@ -736,6 +739,7 @@ strval   = STR_CONFIG_SETTING_MINUTES_PER_YEAR_VALUE
 pre_cb   = [](auto) { return _game_mode == GM_MENU || _settings_game.economy.timekeeping_units == 1; }
 post_cb  = ChangeMinutesPerYear
 cat      = SC_BASIC
+guiproc  = CalendarModeDisabledGUI
 
 [SDT_VAR]
 var      = economy.town_cargo_scale
@@ -778,6 +782,7 @@ strhelp  = STR_CONFIG_SETTING_CARGO_SCALE_MODE_HELPTEXT
 strval   = STR_CONFIG_SETTING_CARGO_SCALE_MODE_MONTHLY
 cat      = SC_BASIC
 post_cb  = [](auto) { InvalidateWindowClassesData(WC_GAME_OPTIONS); UpdateCargoScalers(); }
+guiproc  = WallclockModeDisabledGUI
 
 [SDT_VAR]
 var      = economy.industry_cargo_scale_mode
@@ -841,6 +846,7 @@ strhelp  = STR_CONFIG_SETTING_TICK_RATE_HELPTEXT
 strval   = STR_CONFIG_SETTING_TICK_RATE_TRADITIONAL
 cat      = SC_EXPERT
 post_cb  = [](auto) { SetupTickRate(); }
+guiproc  = WallclockModeDisabledGUI
 patxname = ""economy.tick_rate""
 
 ## Old settings