diff --git a/src/ui/Forms/ExportCustomTextFormat.cs b/src/ui/Forms/ExportCustomTextFormat.cs
index f9067bcf7..4fc1502d9 100644
--- a/src/ui/Forms/ExportCustomTextFormat.cs
+++ b/src/ui/Forms/ExportCustomTextFormat.cs
@@ -171,7 +171,7 @@ namespace Nikse.SubtitleEdit.Forms
 
             if (templateTrimmed == "s")
             {
-                t = t.Replace("s", $"{timeCode.TotalSeconds}");
+                t = t.Replace("s", $"{(long)Math.Round(timeCode.TotalSeconds, MidpointRounding.AwayFromZero)}");
             }
 
             if (templateTrimmed == "zzz")
@@ -181,7 +181,7 @@ namespace Nikse.SubtitleEdit.Forms
 
             if (templateTrimmed == "z")
             {
-                t = t.Replace("z", $"{timeCode.TotalMilliseconds}");
+                t = t.Replace("z", $"{(long)Math.Round(timeCode.TotalMilliseconds, MidpointRounding.AwayFromZero)}");
             }
 
             if (templateTrimmed == "ff")
@@ -189,7 +189,7 @@ namespace Nikse.SubtitleEdit.Forms
                 t = t.Replace("ff", $"{SubtitleFormat.MillisecondsToFrames(timeCode.TotalMilliseconds)}");
             }
 
-            var totalSeconds = (int)timeCode.TotalSeconds;
+            var totalSeconds = (int)Math.Round(timeCode.TotalSeconds, MidpointRounding.AwayFromZero);
             if (t.StartsWith("ssssssss", StringComparison.Ordinal))
             {
                 t = t.Replace("ssssssss", $"{totalSeconds:00000000}");
@@ -225,7 +225,7 @@ namespace Nikse.SubtitleEdit.Forms
                 t = t.Replace("ss", $"{totalSeconds:00}");
             }
 
-            var totalMilliseconds = (long)timeCode.TotalMilliseconds;
+            var totalMilliseconds = (long)Math.Round(timeCode.TotalMilliseconds, MidpointRounding.AwayFromZero);
             if (t.StartsWith("zzzzzzzz", StringComparison.Ordinal))
             {
                 t = t.Replace("zzzzzzzz", $"{totalMilliseconds:00000000}");
@@ -340,7 +340,7 @@ namespace Nikse.SubtitleEdit.Forms
             template = template.Replace("{media-file-name}", string.IsNullOrEmpty(videoFileName) ? videoFileName : Path.GetFileNameWithoutExtension(videoFileName));
             template = template.Replace("{media-file-name-with-ext}", string.IsNullOrEmpty(videoFileName) ? videoFileName : Path.GetFileName(videoFileName));
             template = template.Replace("{#lines}", subtitle.Paragraphs.Count.ToString(CultureInfo.InvariantCulture));
-            
+
             template = template.Replace("{tab}", "\t");
             return template;
         }
@@ -356,7 +356,7 @@ namespace Nikse.SubtitleEdit.Forms
 
             if (timeCodeTemplate == "zzz" || timeCodeTemplate == "zz" || timeCodeTemplate == "z")
             {
-                d = duration.TotalMilliseconds.ToString(CultureInfo.InvariantCulture);
+                d = ((long)Math.Round(duration.TotalMilliseconds, MidpointRounding.AwayFromZero)).ToString(CultureInfo.InvariantCulture);
             }
 
             if (timeCodeTemplate == "sss" || timeCodeTemplate == "ss" || timeCodeTemplate == "s")
@@ -446,8 +446,7 @@ namespace Nikse.SubtitleEdit.Forms
                               string.IsNullOrEmpty(videoFileName) ? string.Empty : Path.GetFileName(videoFileName),
                               actorColonSpace,
                               actorUppercaseBracketsSpace
-                              )
-                ;
+                              );
             s = PostCurly(s, replaceStart, replaceEnd);
             return s;
         }