diff --git a/Gemfile.lock b/Gemfile.lock
index 55c1ed9..c2321e1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    crono (0.8.5.pre)
+    crono (0.8.7.pre)
       activejob (~> 4.0)
       activerecord (~> 4.0)
       activesupport (~> 4.0)
@@ -31,7 +31,7 @@ GEM
       columnize (= 0.9.0)
     columnize (0.9.0)
     diff-lcs (1.2.5)
-    globalid (0.3.3)
+    globalid (0.3.5)
       activesupport (>= 4.1.0)
     haml (4.0.6)
       tilt
diff --git a/lib/crono/cli.rb b/lib/crono/cli.rb
index 478c755..aa7eb98 100644
--- a/lib/crono/cli.rb
+++ b/lib/crono/cli.rb
@@ -62,7 +62,7 @@ module Crono
       logger.info 'Jobs:'
       Crono.scheduler.jobs.each do |job|
         logger.info "'#{job.performer}' with rule '#{job.period.description}'"\
-                    "next time will perform at #{job.next}"
+                    " next time will perform at #{job.next}"
       end
     end
 
@@ -80,9 +80,9 @@ module Crono
     end
 
     def start_working_loop
-      while true
+      loop do
         next_time, jobs = Crono.scheduler.next_jobs
-        sleep(next_time - Time.now)
+        sleep(next_time - Time.now) if next_time > Time.now
         jobs.each(&:perform)
       end
     end
diff --git a/lib/crono/job.rb b/lib/crono/job.rb
index 24a7922..276e373 100644
--- a/lib/crono/job.rb
+++ b/lib/crono/job.rb
@@ -60,9 +60,7 @@ module Crono
     end
 
     def perform_job
-      performer_instance = performer.new
-      performer_instance.instance_variable_set(:@_crono_job, self)
-      performer_instance.perform
+      performer.new.perform
       finished_time_sec = format('%.2f', Time.now - last_performed_at)
     rescue StandardError => e
       handle_job_fail(e, finished_time_sec)
diff --git a/lib/crono/period.rb b/lib/crono/period.rb
index 31a99f3..661cd88 100644
--- a/lib/crono/period.rb
+++ b/lib/crono/period.rb
@@ -1,5 +1,5 @@
 module Crono
-  # Period describe frequency of performing a task
+  # Period describe frequency of jobs
   class Period
     DAYS = [:monday, :tuesday, :wednesday, :thursday, :friday, :saturday,
             :sunday]
@@ -14,7 +14,9 @@ module Crono
       return initial_next unless since
       @next = @period.since(since)
       @next = @next.beginning_of_week.advance(days: @on) if @on
-      @next.change(time_atts)
+      @next = @next.change(time_atts)
+      return @next if @next.future?
+      Time.now
     end
 
     def description
diff --git a/lib/crono/version.rb b/lib/crono/version.rb
index 17b35a1..a191de3 100644
--- a/lib/crono/version.rb
+++ b/lib/crono/version.rb
@@ -1,3 +1,3 @@
 module Crono
-  VERSION = '0.8.5.pre'
+  VERSION = '0.8.7.pre'
 end
diff --git a/spec/job_spec.rb b/spec/job_spec.rb
index 6eb8c45..029e50c 100644
--- a/spec/job_spec.rb
+++ b/spec/job_spec.rb
@@ -32,23 +32,10 @@ describe Crono::Job do
       expect(saved_log).to include 'Some error'
     end
 
-    xit 'should set Job#healthy to true if perform ok' do
-      class TestJob
-        def perform
-          @_crono_job
-        end
-      end
-      job.perform.join
-    end
-
     it 'should set Job#healthy to false if perform with error' do
       failing_job.perform.join
       expect(failing_job.healthy).to be false
     end
-
-    xit 'should set @_crono_job variable to instance' do
-      job.perform
-    end
   end
 
   describe '#description' do
diff --git a/spec/period_spec.rb b/spec/period_spec.rb
index bb7fa57..e396912 100644
--- a/spec/period_spec.rb
+++ b/spec/period_spec.rb
@@ -53,28 +53,33 @@ describe Crono::Period do
     end
 
     context 'in daily basis' do
+      it "should return Time.now if the next time in past" do
+        @period = Crono::Period.new(1.day, at: '06:00')
+        expect(@period.next(since: 2.days.ago)).to be_eql(Time.now)
+      end
+
       it 'should return the time 2 days from now' do
         @period = Crono::Period.new(2.day)
-        expect(@period.next).to be_eql(2.day.from_now)
+        expect(@period.next).to be_eql(2.days.from_now)
       end
 
       it "should set time to 'at' time as a string" do
         time = 10.minutes.ago
         at = [time.hour, time.min].join(':')
-        @period = Crono::Period.new(2.day, at: at)
-        expect(@period.next).to be_eql(2.day.from_now.change(hour: time.hour, min: time.min))
+        @period = Crono::Period.new(2.days, at: at)
+        expect(@period.next).to be_eql(2.days.from_now.change(hour: time.hour, min: time.min))
       end
 
       it "should set time to 'at' time as a hash" do
         time = 10.minutes.ago
         at = { hour: time.hour, min: time.min }
-        @period = Crono::Period.new(2.day, at: at)
-        expect(@period.next).to be_eql(2.day.from_now.change(at))
+        @period = Crono::Period.new(2.days, at: at)
+        expect(@period.next).to be_eql(2.days.from_now.change(at))
       end
 
       it "should raise error when 'at' is wrong" do
         expect {
-          Crono::Period.new(2.day, at: 1)
+          Crono::Period.new(2.days, at: 1)
         }.to raise_error("Unknown 'at' format")
       end
 
@@ -85,14 +90,14 @@ describe Crono::Period do
       end
 
       it 'should return time in relation to last time' do
-        @period = Crono::Period.new(2.day)
+        @period = Crono::Period.new(2.days)
         expect(@period.next(since: 1.day.ago)).to be_eql(1.day.from_now)
       end
 
       it 'should return today time if it is first run and not too late' do
         time = 10.minutes.from_now
         at = { hour: time.hour, min: time.min }
-        @period = Crono::Period.new(2.day, at: at)
+        @period = Crono::Period.new(2.days, at: at)
         expect(@period.next.utc.to_s).to be_eql(Time.now.change(at).utc.to_s)
       end
     end