diff --git a/gitarro.rb b/gitarro.rb
index 9028200..bb37f75 100755
--- a/gitarro.rb
+++ b/gitarro.rb
@@ -8,7 +8,14 @@
 require_relative 'lib/gitarro/backend'
 
 b = Backend.new
-prs = b.open_prs
+prs = b.open_newer_prs
+
+# Exit without errors if no PRs were found
+if prs.empty?
+  puts 'There are no Pull Requests opened or with changes newer than ' \
+       "#{b.options[:change_newer]} minutes"
+  exit(0)
+end
 
 prs.each do |pr|
   puts '=' * 30 + "\n" + "TITLE_PR: #{pr.title}, NR: #{pr.number}\n" + '=' * 30
diff --git a/lib/gitarro/backend.rb b/lib/gitarro/backend.rb
index 4b8a0d7..6d166bd 100755
--- a/lib/gitarro/backend.rb
+++ b/lib/gitarro/backend.rb
@@ -2,6 +2,7 @@
 
 require 'octokit'
 require 'optparse'
+require 'time'
 require 'English'
 require_relative 'opt_parser'
 require_relative 'git_op'
@@ -63,11 +64,16 @@ def initialize(option = nil)
     @gbexec = TestExecutor.new(@options)
   end
 
-  # public method for get prs opens
-  # given a repo
-  def open_prs
-    prs = @client.pull_requests(@repo, state: 'open')
-    puts 'no Pull request OPEN on the REPO!' unless prs.any?
+  # public method for get prs opened and matching the change_newer
+  # condition
+  def open_newer_prs
+    prs = []
+    @client.pull_requests(@repo, state: 'open').each do |pr|
+      if Time.now.utc - pr.updated_at < @options[:change_newer] * 60 ||
+         @options[:change_newer] < 0
+        prs << pr
+      end
+    end
     prs
   end
 
@@ -84,8 +90,7 @@ def retrigger_check(pr)
 
   # public always rerun tests against the pr number if this exists
   def trigger_by_pr_number(pr)
-    return false if @pr_number.nil?
-    return false if @pr_number != pr.number
+    return false if @pr_number.nil? || @pr_number != pr.number
     puts "Got triggered by PR_NUMBER OPTION, rerunning on #{@pr_number}"
     launch_test_and_setup_status(@repo, pr)
     true
@@ -117,8 +122,7 @@ def reviewed_pr_test(comm_st, pr)
     pr_all_files_type(@repo, pr.number, @file_type)
     return true if changelog_active(pr, comm_st)
     return false unless @pr_files.any?
-    exit 1 if @check
-    launch_test_and_setup_status(@repo, pr)
+    @check ? exit(1) : launch_test_and_setup_status(@repo, pr)
     true
   end
 
@@ -145,9 +149,8 @@ def launch_test_and_setup_status(repo, pr)
   # # for retrigger all the tests.
   def magicword(repo, pr_number, context)
     magic_word_trigger = "gitarro rerun #{context} !!!"
-    pr_comment = @client.issue_comments(repo, pr_number)
     # a pr contain always a comments, cannot be nil
-    pr_comment.each do |com|
+    @client.issue_comments(repo, pr_number).each do |com|
       # delete comment otherwise it will be retrigger infinetely
       if com.body.include? magic_word_trigger
         @client.delete_comment(repo, com.id)
@@ -160,8 +163,7 @@ def magicword(repo, pr_number, context)
   # check all files of a Prs Number if they are a specific type
   # EX: Pr 56, we check if files are '.rb'
   def pr_all_files_type(repo, pr_number, type)
-    files = @client.pull_request_files(repo, pr_number)
-    files.each do |file|
+    @client.pull_request_files(repo, pr_number).each do |file|
       @pr_files.push(file.filename) if file.filename.include? type
     end
   end
@@ -259,8 +261,7 @@ def do_changelog_test(repo, pr)
   def changelog_changed(repo, pr, comm_st)
     return false unless @changelog_test
     # only execute 1 time, don"t run if test is failed, or ok
-    return false if failed_status?(comm_st)
-    return false if success_status?(comm_st)
+    return false if failed_status?(comm_st) || success_status?(comm_st)
     do_changelog_test(repo, pr)
   end
 
diff --git a/lib/gitarro/opt_parser.rb b/lib/gitarro/opt_parser.rb
index 69d2c8a..3fce2ab 100755
--- a/lib/gitarro/opt_parser.rb
+++ b/lib/gitarro/opt_parser.rb
@@ -91,6 +91,14 @@ def pr_number(opt)
     end
   end
 
+  def change_newer(opt)
+    change_newer_desc = 'If present, will only check PRs with a change in ' \
+                       'the last X minutes'
+    opt.on("--change_newer 'MINUTES'", change_newer_desc) do |change_newer|
+      @options[:change_newer] = Integer(change_newer)
+    end
+  end
+
   def optional_options(opt)
     opt.separator ''
     opt.separator 'Optional options:'
@@ -100,6 +108,7 @@ def optional_options(opt)
     url_opt(opt)
     pr_number(opt)
     https_opt(opt)
+    change_newer(opt)
   end
 end
 
diff --git a/tests/unit_tests/t_backend.rb b/tests/unit_tests/t_backend.rb
index 058797f..55e6b9e 100755
--- a/tests/unit_tests/t_backend.rb
+++ b/tests/unit_tests/t_backend.rb
@@ -5,10 +5,13 @@
 Dir.chdir Dir.pwd
 # Test the option parser
 class BackendTest2 < Minitest::Test
-  def test_full_option_import2
+  def setup
     @full_hash = { repo: 'gino/gitarro', context: 'python-t', description:
                    'functional', test_file: 'gino.sh', file_type: '.sh',
-                   git_dir: 'gitty' }
+                   git_dir: 'gitty', change_newer: -1 }
+  end
+
+  def test_full_option_import2
     gitarro = Backend.new(@full_hash)
     puts gitarro.j_status
     gitarro.j_status = 'foo'
@@ -25,9 +28,7 @@ def gitarro_assert(gitarro)
   end
 
   def test_run_script
-    @full_hash = { repo: 'gino/gitarro', context: 'python-t', description:
-                   'functional', test_file: 'test_data/script_ok.sh',
-                   file_type: '.sh', git_dir: 'gitty' }
+    @full_hash[:test_file] = 'test_data/script_ok.sh'
     gbex = TestExecutor.new(@full_hash)
     ck_files(gbex)
     test_file = 'nofile.txt'
@@ -48,4 +49,19 @@ def assert_file_non_ex(gbex, test_file)
     assert_equal("'#{test_file}\' doesn't exists.Enter valid file, -t option",
                  ex.message)
   end
+
+  def test_get_all_prs
+    @full_hash[:repo] = 'openSUSE/gitbot'
+    gitbot = Backend.new(@full_hash)
+    prs = gitbot.open_newer_prs
+    assert(true, prs.any?)
+  end
+
+  def test_get_no_prs
+    @full_hash[:repo] = 'openSUSE/gitbot'
+    @full_hash[:change_newer] = 0
+    gitbot = Backend.new(@full_hash)
+    prs = gitbot.open_newer_prs
+    assert(0, prs.count)
+  end
 end