diff --git a/README.md b/README.md
index 77d82dc..1fcd44e 100644
--- a/README.md
+++ b/README.md
@@ -466,6 +466,7 @@ Profile on LeetCode: [fartem](https://leetcode.com/fartem/).
 | 3151. Special Array I                                              | [Link](https://leetcode.com/problems/special-array-i/)                                              | [Link](./lib/easy/3151_special_array_i.rb)                                              | [Link](./test/easy/test_3151_special_array_i.rb)                                              |
 | 3210. Find the Encrypted String                                    | [Link](https://leetcode.com/problems/find-the-encrypted-string/)                                    | [Link](./lib/easy/3210_find_the_encrypted_string.rb)                                    | [Link](./test/easy/test_3210_find_the_encrypted_string.rb)                                    |
 | 3280. Convert Date to Binary                                       | [Link](https://leetcode.com/problems/convert-date-to-binary/)                                       | [Link](./lib/easy/3280_convert_date_to_binary.rb)                                       | [Link](./test/easy/test_3280_convert_date_to_binary.rb)                                       |
+| 3386. Button with Longest Push Time                                | [Link](https://leetcode.com/problems/button-with-longest-push-time/)                                | [Link](./lib/easy/3386_button_with_longest_push_time.rb)                                | [Link](./test/easy/test_3386_button_with_longest_push_time.rb)                                |
 | 3498. Reverse Degree of a String                                   | [Link](https://leetcode.com/problems/reverse-degree-of-a-string/)                                   | [Link](./lib/easy/3498_reverse_degree_of_a_string.rb)                                   | [Link](./test/easy/test_3498_reverse_degree_of_a_string.rb)                                   |
 | 3516. Find Closest Person                                          | [Link](https://leetcode.com/problems/find-closest-person/)                                          | [Link](./lib/easy/3516_find_closest_person.rb)                                          | [Link](./test/easy/test_3516_find_closest_person.rb)                                          |
 
diff --git a/leetcode-ruby.gemspec b/leetcode-ruby.gemspec
index f3bf9e6..f0cee8b 100644
--- a/leetcode-ruby.gemspec
+++ b/leetcode-ruby.gemspec
@@ -5,7 +5,7 @@ require 'English'
 ::Gem::Specification.new do |s|
   s.required_ruby_version = '>= 3.0'
   s.name = 'leetcode-ruby'
-  s.version = '9.3.6'
+  s.version = '9.3.7'
   s.license = 'MIT'
   s.files = ::Dir['lib/**/*.rb'] + %w[README.md]
   s.executable = 'leetcode-ruby'
diff --git a/lib/easy/3386_button_with_longest_push_time.rb b/lib/easy/3386_button_with_longest_push_time.rb
new file mode 100644
index 0000000..3221077
--- /dev/null
+++ b/lib/easy/3386_button_with_longest_push_time.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+# https://leetcode.com/problems/button-with-longest-push-time/
+# @param {Integer[][]} events
+# @return {Integer}
+def button_with_longest_time(events)
+  max_time = events[0][1]
+  result = events[0][0]
+
+  (1...events.size).each do |i|
+    press_time = events[i][1] - events[i - 1][1]
+
+    next unless press_time > max_time || press_time == max_time && events[i][0] < result
+
+    max_time = press_time
+
+    result = events[i][0]
+  end
+
+  result
+end
diff --git a/test/easy/test_3386_button_with_longest_push_time.rb b/test/easy/test_3386_button_with_longest_push_time.rb
new file mode 100644
index 0000000..9e8b3d6
--- /dev/null
+++ b/test/easy/test_3386_button_with_longest_push_time.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require_relative '../test_helper'
+require_relative '../../lib/easy/3386_button_with_longest_push_time'
+require 'minitest/autorun'
+
+class ButtonWithLongestPushTimeTest < ::Minitest::Test
+  def test_default_one
+    assert_equal(
+      1,
+      button_with_longest_time(
+        [
+          [1, 2],
+          [2, 5],
+          [3, 9],
+          [1, 15]
+        ]
+      )
+    )
+  end
+
+  def test_default_two
+    assert_equal(
+      10,
+      button_with_longest_time(
+        [
+          [10, 5],
+          [1, 7]
+        ]
+      )
+    )
+  end
+end