diff --git a/player/lua/osc.lua b/player/lua/osc.lua
index 944de4a455110..6ae4c0b23dce6 100644
--- a/player/lua/osc.lua
+++ b/player/lua/osc.lua
@@ -272,6 +272,7 @@ local state = {
     osc_chapterlist_warned = false,
     osc_playlist_warned = false,
     osc_tracklist_warned = false,
+	last_hover_possec = nil,
 }
 
 local logo_lines = {
@@ -1028,6 +1029,18 @@ local function render_elements(master_ass)
                     local sliderpos = get_slider_value(element)
                     local tooltiplabel = element.slider.tooltipF(sliderpos)
 
+                    if element == state.slider_element then
+                        local dur = mp.get_property_number("duration", 0)
+                        if dur > 0 then
+                            local possec = sliderpos * dur / 100
+                            -- Only update if it changed by more than 0.1s to prevent lag
+                            if not state.last_hover_possec or math.abs(state.last_hover_possec - possec) > 0.1 then
+                                mp.set_property_native("user-data/osc/hovered-time", possec)
+                                state.last_hover_possec = possec
+                            end
+                        end
+                    end
+
                     local an = slider_lo.tooltip_an
 
                     local ty
@@ -1063,6 +1076,12 @@ local function render_elements(master_ass)
                     ass_append_alpha(elem_ass, slider_lo.alpha, 0)
                     elem_ass:append(tooltiplabel)
 
+                else
+                    -- clear hover time when mouse leaves the slider
+                    if element == state.slider_element and state.last_hover_possec ~= nil then
+                        mp.set_property_native("user-data/osc/hovered-time", nil)
+                        state.last_hover_possec = nil
+                    end
                 end
             end
 
@@ -3024,6 +3043,7 @@ set_time_styles(true, true)
 set_tick_delay("display_fps", mp.get_property_number("display_fps"))
 visibility_mode(user_opts.visibility, true)
 update_duration_watch()
+mp.set_property_native("user-data/osc/hovered-time", nil)
 
 set_virt_mouse_area(0, 0, 0, 0, "input")
 set_virt_mouse_area(0, 0, 0, 0, "window-controls")