diff --git a/BizHawk.Client.Common/movie/PlatformFrameRates.cs b/BizHawk.Client.Common/movie/PlatformFrameRates.cs
index 11b25b77a8..f199e4ee8a 100644
--- a/BizHawk.Client.Common/movie/PlatformFrameRates.cs
+++ b/BizHawk.Client.Common/movie/PlatformFrameRates.cs
@@ -110,7 +110,7 @@ namespace BizHawk.Client.Common
 
 		private double GetSeconds(IMovie movie)
 		{
-			double frames = movie.InputLogLength;
+			double frames = movie.TimeLength;
 
 			if (frames < 1)
 			{
diff --git a/BizHawk.Client.Common/movie/bk2/Bk2Movie.cs b/BizHawk.Client.Common/movie/bk2/Bk2Movie.cs
index a7bf3f088d..c58b92289d 100644
--- a/BizHawk.Client.Common/movie/bk2/Bk2Movie.cs
+++ b/BizHawk.Client.Common/movie/bk2/Bk2Movie.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 
 using BizHawk.Emulation.Common;
 
@@ -69,12 +70,27 @@ namespace BizHawk.Client.Common
 				{
 					return double.PositiveInfinity;
 				}
-
+				
 				return Log.Count;
 			}
 		}
 
-		public int InputLogLength => Log.Count;
+		public int InputLogLength
+		{
+			get
+			{
+				return Log.Count;
+			}
+		}
+
+		public int TimeLength
+		{
+			get
+			{
+				if (Header.ContainsKey("VBlankCount")) { return Convert.ToInt32(Header["VBlankCount"]); }
+				return Log.Count;
+			}
+		}
 
 		#region Log Editing
 
diff --git a/BizHawk.Client.Common/movie/bkm/BkmMovie.cs b/BizHawk.Client.Common/movie/bkm/BkmMovie.cs
index b90058addd..32003a7030 100644
--- a/BizHawk.Client.Common/movie/bkm/BkmMovie.cs
+++ b/BizHawk.Client.Common/movie/bkm/BkmMovie.cs
@@ -45,6 +45,8 @@ namespace BizHawk.Client.Common
 		
 		public int InputLogLength => _log.Count;
 
+		public int TimeLength => _log.Count;
+
 		public double FrameCount
 		{
 			get
diff --git a/BizHawk.Client.Common/movie/interfaces/IMovie.cs b/BizHawk.Client.Common/movie/interfaces/IMovie.cs
index 8ff81ea8cb..d951ce2871 100644
--- a/BizHawk.Client.Common/movie/interfaces/IMovie.cs
+++ b/BizHawk.Client.Common/movie/interfaces/IMovie.cs
@@ -34,6 +34,11 @@ namespace BizHawk.Client.Common
 		/// </summary>
 		int InputLogLength { get; }
 
+		/// <summary>
+		/// Gets the actual length of time a movie lasts for. For subframe cores, this will be different then the above two options
+		/// </summary>
+		int TimeLength { get; }
+
 		/// <summary>
 		/// Gets the file extension for the current <see cref="IMovie"/> implementation
 		/// </summary>