diff --git a/mods/ITEMS/mcl_furnaces/init.lua b/mods/ITEMS/mcl_furnaces/init.lua
index 439a9e501..2865a0755 100644
--- a/mods/ITEMS/mcl_furnaces/init.lua
+++ b/mods/ITEMS/mcl_furnaces/init.lua
@@ -1,6 +1,5 @@
 
 local S = minetest.get_translator("mcl_furnaces")
-local time_multiplier = 24*60*60 / (minetest.settings:get('time_speed') or 72)
 
 --
 -- Formspecs
@@ -164,6 +163,7 @@ local function furnace_node_timer(pos, elapsed)
 	local src_item = meta:get_string("src_item") or ""
 	local fuel_totaltime = meta:get_float("fuel_totaltime") or 0
 
+	local time_multiplier = 86400 / (minetest.settings:get('time_speed') or 72)
 	local current_game_time = .0 + ((minetest.get_day_count() + minetest.get_timeofday()) * time_multiplier)
 
 	local last_game_time = meta:get_string("last_gametime") -- FIXME: In Windows s(g)et_float() works OK but under Linux it returns rounded 2-byte values like 449540.000000000 which are unusable