diff --git a/openpype/hosts/hiero/api/otio/hiero_export.py b/openpype/hosts/hiero/api/otio/hiero_export.py
index 46e1204324..1e4088d9c0 100644
--- a/openpype/hosts/hiero/api/otio/hiero_export.py
+++ b/openpype/hosts/hiero/api/otio/hiero_export.py
@@ -277,7 +277,7 @@ def create_otio_clip(track_item):
     # flip if speed is in minus
     source_in = track_item.sourceIn() if speed > 0 else track_item.sourceOut()
 
-    duration = int(track_item.duration()) - 1
+    duration = int(track_item.duration())
 
     fps = utils.get_rate(track_item) or self.project_fps
     name = track_item.name()
diff --git a/openpype/hosts/hiero/api/plugin.py b/openpype/hosts/hiero/api/plugin.py
index 8c61baa04b..add416d04e 100644
--- a/openpype/hosts/hiero/api/plugin.py
+++ b/openpype/hosts/hiero/api/plugin.py
@@ -504,7 +504,7 @@ class ClipLoader:
         track_item.setSource(clip)
         track_item.setSourceIn(self.handle_start)
         track_item.setTimelineIn(self.timeline_in)
-        track_item.setSourceOut((self.media_duration + 1) - self.handle_end)
+        track_item.setSourceOut((self.media_duration) - self.handle_end)
         track_item.setTimelineOut(self.timeline_out)
         track_item.setPlaybackSpeed(1)
         self.active_track.addTrackItem(track_item)
diff --git a/openpype/lib/editorial.py b/openpype/lib/editorial.py
index 5fe498bf6a..2c877b9d0d 100644
--- a/openpype/lib/editorial.py
+++ b/openpype/lib/editorial.py
@@ -255,7 +255,7 @@ def get_media_range_with_retimes(otio_clip, handle_start, handle_end):
         media_in + source_in + offset_in)
     media_out_trimmed = (
         media_in + source_in + (
-            (source_range.duration.value * abs(
+            ((source_range.duration.value - 1) * abs(
                 time_scalar)) + offset_out))
 
     # calculate available handles
diff --git a/openpype/plugins/publish/collect_otio_frame_ranges.py b/openpype/plugins/publish/collect_otio_frame_ranges.py
index ee7b7957ad..8eaf9d6f29 100644
--- a/openpype/plugins/publish/collect_otio_frame_ranges.py
+++ b/openpype/plugins/publish/collect_otio_frame_ranges.py
@@ -55,13 +55,13 @@ class CollectOtioFrameRanges(pyblish.api.InstancePlugin):
             "frameStart": frame_start,
             "frameEnd": frame_end,
             "clipIn": tl_start,
-            "clipOut": tl_end,
+            "clipOut": tl_end - 1,
             "clipInH": tl_start_h,
-            "clipOutH": tl_end_h,
+            "clipOutH": tl_end_h - 1,
             "sourceStart": src_starting_from + src_start,
-            "sourceEnd": src_starting_from + src_end,
+            "sourceEnd": src_starting_from + src_end - 1,
             "sourceStartH": src_starting_from + src_start_h,
-            "sourceEndH": src_starting_from + src_end_h,
+            "sourceEndH": src_starting_from + src_end_h - 1,
         }
         instance.data.update(data)
         self.log.debug(
diff --git a/openpype/plugins/publish/collect_otio_subset_resources.py b/openpype/plugins/publish/collect_otio_subset_resources.py
index 7c11462ef0..b89a076a44 100644
--- a/openpype/plugins/publish/collect_otio_subset_resources.py
+++ b/openpype/plugins/publish/collect_otio_subset_resources.py
@@ -66,7 +66,7 @@ class CollectOtioSubsetResources(pyblish.api.InstancePlugin):
 
         # create trimmed otio time range
         trimmed_media_range_h = editorial.range_from_frames(
-            a_frame_start_h, (a_frame_end_h - a_frame_start_h + 1),
+            a_frame_start_h, (a_frame_end_h - a_frame_start_h) + 1,
             media_fps
         )
         trimmed_duration = trimmed_media_range_h.duration.value