diff --git a/automation/autoload/kara-templater.lua b/automation/autoload/kara-templater.lua
index 3c992f074..f032e1433 100644
--- a/automation/autoload/kara-templater.lua
+++ b/automation/autoload/kara-templater.lua
@@ -256,6 +256,47 @@ function apply_templates(meta, styles, subs, templates)
 	}
 	tenv.tenv = tenv
 	
+	tenv.retime = function(mode, addstart, addend)
+		local line, syl = tenv.line, tenv.syl
+		local newstart, newend = line.start_time, line.end_time
+		addstart = addstart or 0
+		addend = addend or 0
+		if mode == "syl" then
+			newstart = line.start_time + syl.start_time + addstart
+			newend = line.start_time + syl.end_time + addend
+		elseif mode == "presyl" then
+			newstart = line.start_time + syl.start_time + addstart
+			newend = line.start_time + syl.start_time + addend
+		elseif mode == "postsyl" then
+			newstart = line.start_time + syl.end_time + addstart
+			newend = line.start_time + syl.end_time + addend
+		elseif mode == "preline" then
+			newstart = line.start_time + addstart
+			newend = line.start_time + addend
+		elseif mode == "postline" then
+			newstart = line.end_time + addstart
+			newend = line.end_time + addend
+		elseif mode == "start2syl" then
+			newstart = line.start_time + addstart
+			newend = line.start_time + syl.start_time + addend
+		elseif mode == "syl2end" then
+			newstart = line.start_time + syl.end_time + addstart
+			newend = line.end_time + addend
+		elseif mode == "set" or mode == "abs" then
+			newstart = addstart
+			newend = addend
+		elseif mode == "sylpct" then
+			newstart = line.start_time + syl.start_time + addstart*syl.duration/100
+			newend = line.start_time + syl.start_time + addend*syl.duration/100
+		-- wishlist: something for fade-over effects,
+		-- "time between previous line and this" and
+		-- "time between this line and next"
+		end
+		line.start_time = newstart
+		line.end_time = newend
+		return ""
+	end
+	
 	-- run all run-once code snippets
 	for k, t in pairs(templates.once) do
 		assert(t.code, "WTF, a 'once' template without code?")
@@ -375,8 +416,7 @@ function apply_line(meta, styles, subs, line, templates, tenv)
 	tenv.orgline = line
 	tenv.line = nil
 	tenv.syl = nil
-	tenv.char = nil
-	tenv.furi = nil
+	tenv.basesyl = nil
 
 	-- Apply all line templates
 	aegisub.debug.out(5, "Running line templates\n")
diff --git a/automation/tests/kara-templater-retime.ass b/automation/tests/kara-templater-retime.ass
new file mode 100644
index 000000000..c9176540d
--- /dev/null
+++ b/automation/tests/kara-templater-retime.ass
@@ -0,0 +1,29 @@
+[Script Info]
+Title: Default Aegisub file
+ScriptType: v4.00+
+WrapStyle: 0
+PlayResX: 640
+PlayResY: 480
+Video Aspect Ratio: 0
+Video Zoom: 8
+Video Position: 500
+Last Style Storage: Default
+Video File: ?dummy:50.000000:1000:640:480:226:221:236:c
+
+[V4+ Styles]
+Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
+Style: Default,Arial,50,&H00FFFFFF,&H0000FFFF,&H00000000,&H00000000,-1,0,0,0,100,100,0,0,1,2,0,5,10,10,10,0
+
+[Events]
+Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("abs",1000,2000)!{\pos($x,$y)\1c&H0000FF&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("preline",-100)!{\pos($x,$y)\1c&H000000&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("start2syl")!{\pos($x,$y)\1c&HFF0000&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("presyl",-200,0)!{\pos($x,$y)\1a&HFF&\3c&H0000FF&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("syl")!{\pos($x,$y)\1c&H00FF00&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("postsyl",0,200)!{\pos($x,$y)\1a&HFF&\3c&H00FF00&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("syl2end",200,0)!{\pos($x,$y)\1c&HFF00FF&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("postline",0,100)!{\pos($x,$y)\1c&H00FFFF&}
+Comment: 0,0:00:00.00,0:00:00.00,Default,,0000,0000,0000,template noblank,!retime("sylpct",50,100)!{\pos($center,$middle)\an5\1a&HFF&\3c&HFFFFFF&\fscy300\t(\3a&HFF&)}
+Dialogue: 0,0:00:10.00,0:00:11.00,Default,,0000,0000,0000,,{\k30}ha{\k20}hi{\k50}ho
+Dialogue: 0,0:00:11.00,0:00:16.00,Default,,0000,0000,0000,,
\ No newline at end of file
diff --git a/docs/auto4-kara-templater-retime-explanation.png b/docs/auto4-kara-templater-retime-explanation.png
new file mode 100644
index 000000000..5af9f06b2
Binary files /dev/null and b/docs/auto4-kara-templater-retime-explanation.png differ