diff --git a/layouts/partials/timecode_to_ms.tmpl b/layouts/partials/timecode_to_ms.tmpl
index a51a34c..e83371e 100644
--- a/layouts/partials/timecode_to_ms.tmpl
+++ b/layouts/partials/timecode_to_ms.tmpl
@@ -3,11 +3,27 @@
 {{- if ne (len $parts) 3 -}}
   {{- errorf "invalid timestamp %q" . -}}
 {{- else -}}
-  {{- $hours := collections.Index $parts 0 | cast.ToInt -}}
-  {{- $minutes := collections.Index $parts 1 | cast.ToInt -}}
+  {{- $hoursStr:= collections.Index $parts 0 | strings.TrimLeft "0" -}}
+  {{- $hours := 0 -}}
+  {{- with $hoursStr -}}
+    {{- $hours = cast.ToInt . -}}
+  {{- end -}}
+  {{- $minutesStr := collections.Index $parts 1 | strings.TrimLeft "0" -}}$
+  {{- $minutes := 0 -}}
+  {{- with $minutesStr }}
+    {{- $minutes = cast.ToInt . -}}
+  {{- end -}}
   {{- $parts2 := strings.Split (collections.Index $parts 2) "," -}}
-  {{- $seconds := collections.Index $parts2 0 | cast.ToInt -}}
-  {{- $milliseconds := collections.Index $parts2 1 | cast.ToInt -}}
+  {{- $secondsStr := collections.Index $parts2 0 | strings.TrimLeft "0" -}}
+  {{- $seconds := 0 -}}
+  {{- with $secondsStr -}}
+    {{- $seconds =  cast.ToInt . -}}
+  {{- end -}}
+  {{- $millisecondsStr := collections.Index $parts2 1 | strings.TrimLeft "0" -}}
+  {{- $milliseconds := 0 -}}
+  {{- with $millisecondsStr -}}
+    {{- $milliseconds =  cast.ToInt . -}}
+  {{- end -}}
   {{- $retvalue = math.Add $retvalue (math.Mul $hours 3600 1000) (math.Mul $minutes 60 1000) (math.Mul $seconds 1000) $milliseconds -}}
 {{- end -}}
 {{- return $retvalue -}}