diff --git a/audio_splitter/timestamp.py b/audio_splitter/timestamp.py
index aaab1c5..9b6ba11 100644
--- a/audio_splitter/timestamp.py
+++ b/audio_splitter/timestamp.py
@@ -73,4 +73,15 @@ def resolve_end_times(track_times, total_duration):
             if end_sec <= start_sec:
                 raise ValueError(f"Track {idx+1}: end time ({end_sec}) is not after start ({start_sec})")
         resolved.append((start_sec, end_sec))
+
+    # Warn about overlapping intervals
+    for idx in range(len(resolved) - 1):
+        cur_end = resolved[idx][1]
+        next_start = resolved[idx + 1][0]
+        if cur_end > next_start:
+            print(
+                f"Warning: Track {idx+1} ends at {cur_end}s but Track {idx+2} starts at "
+                f"{next_start}s — timestamps overlap by {cur_end - next_start:.1f}s."
+            )
+
     return resolved