diff --git a/ios/Plugin/TrimSettings.swift b/ios/Plugin/TrimSettings.swift
index af29867..7dc344c 100644
--- a/ios/Plugin/TrimSettings.swift
+++ b/ios/Plugin/TrimSettings.swift
@@ -6,10 +6,14 @@ enum TrimSettingsError: Error {
 
 public class TrimSettings: NSObject
 {
-    private var startsAt: Double = 0;
-    private var endsAt: Double = 0;
-    
-    init(startsAt: Double, endsAt: Double) throws
+    private var startsAt: CLong = 0;
+    private var endsAt: CLong = 0;
+
+    /**
+     * startsAt: startsAt in miliSeconds
+     * endsAt: endsAt in miliSeconds
+     */
+    init(startsAt: CLong, endsAt: CLong) throws
     {
         if (startsAt < 0)
         {
@@ -22,13 +26,21 @@ public class TrimSettings: NSObject
         self.startsAt = startsAt;
         self.endsAt = endsAt;
     }
-    
-    func getStartsAt()->Double
+
+    /**
+     * Get startsAt in miliSeconds
+     * @return startsAt in miliSeconds
+     */
+    func getStartsAt()->CLong
     {
         return self.startsAt;
     }
-    
-    func setStartsAt(_ startsAt: Double) throws
+
+    /**
+     * Set startsAt in miliSeconds
+     * startsAt: startsAt in miliSeconds
+     */
+    func setStartsAt(_ startsAt: CLong) throws
     {
         if (startsAt < 0)
         {
@@ -36,13 +48,21 @@ public class TrimSettings: NSObject
         }
         self.startsAt = startsAt;
     }
-    
-    func getEndsAt()->Double
+
+    /**
+     * Get endsAt in miliSeconds
+     * @return endsAt in miliSeconds
+     */
+    func getEndsAt()->CLong
     {
         return self.endsAt;
     }
-    
-    func setEndsAt(_ endsAt: Double) throws
+
+    /**
+     * Set endsAt in miliSeconds
+     * endsAt: endsAt in miliSeconds
+     */
+    func setEndsAt(_ endsAt: CLong) throws
     {
         if (endsAt < 0)
         {
diff --git a/ios/Plugin/VideoEditor.swift b/ios/Plugin/VideoEditor.swift
index 1da2e8f..1a30e3d 100644
--- a/ios/Plugin/VideoEditor.swift
+++ b/ios/Plugin/VideoEditor.swift
@@ -23,9 +23,9 @@ import UIKit
         let targetVideoSize:CGSize = calculateTargetVideoSize(sourceVideoSize: mediaSize, transcodeSettings: transcodeSettings);
         
         // Trim
-        let start = CMTimeMakeWithSeconds(Float64(trimSettings.getStartsAt() * 1000), preferredTimescale: 1)
+        let start = CMTimeMake(value: Int64(trimSettings.getStartsAt()), timescale: 1000)
         let end = trimSettings.getEndsAt() > 0
-            ? CMTimeMakeWithSeconds(Float64(trimSettings.getEndsAt() * 1000), preferredTimescale: 1)
+            ? CMTimeMake(value: Int64(trimSettings.getEndsAt()), timescale: 1000)
             : avAsset.duration
         let duration = min((end - start), (avAsset.duration - start))
         let range = CMTimeRangeMake(start: start, duration: duration)
diff --git a/ios/Plugin/VideoEditorPlugin.swift b/ios/Plugin/VideoEditorPlugin.swift
index 8b8a201..5ec59e8 100644
--- a/ios/Plugin/VideoEditorPlugin.swift
+++ b/ios/Plugin/VideoEditorPlugin.swift
@@ -22,8 +22,8 @@ public class VideoEditorPlugin: CAPPlugin {
         
         do {
             let trimSettings = try TrimSettings(
-                startsAt: (trim["startsAt"] ?? 0.0) as! Double,
-                endsAt: (trim["endsAt"] ?? 0.0) as! Double
+                startsAt: (trim["startsAt"] ?? 0) as! CLong,
+                endsAt: (trim["endsAt"] ?? 0) as! CLong
             );
             
             let transcodeSettings = try TranscodeSettings(
diff --git a/src/definitions.ts b/src/definitions.ts
index 34bb1dc..a41c554 100644
--- a/src/definitions.ts
+++ b/src/definitions.ts
@@ -11,15 +11,25 @@ export interface VideoEditorPlugin {
 
 export interface EditOptions {
   path: string;
-  trim?: {
-    startsAt?: number;
-    endsAt?: number;
-  };
-  transcode?: {
-    height?: number;
-    width?: number;
-    keepAspectRatio?: boolean;
-  };
+  trim?: TrimOptions;
+  transcode?: TranscodeOptions;
+}
+
+export interface TrimOptions {
+  /**
+   * StartsAt in milliseconds
+   */
+  startsAt?: number;
+  /**
+   * EndsAt in milliseconds
+   */
+  endsAt?: number;
+}
+
+export interface TranscodeOptions {
+  height?: number;
+  width?: number;
+  keepAspectRatio?: boolean;
 }
 
 export interface ThumbnailOptions {