Always use Time.current (aliases internally to Time.zone.now)

Some specs where breaking close to midnight because 30.years.ago uses zone.now and Time.now.utc.to_date doesn't.
Also this will make all codebase consistent in the way time is deal with

app/models/poll/voter.rb

@@ -50,7 +50,7 @@ class Poll
         if dob.blank?
           nil
         else
-          now = Time.now.utc.to_date
+          now = Time.current.to_date
           now.year - dob.year - ((now.month > dob.month || (now.month == dob.month && now.day >= dob.day)) ? 0 : 1)
         end
       end

db/dev_seeds.rb

@@ -407,7 +407,7 @@ tags = Faker::Lorem.words(10)
     title: Faker::Lorem.sentence(3).truncate(60),
     external_url: Faker::Internet.url,
     description: "<p>#{Faker::Lorem.paragraphs.join('</p><p>')}</p>",
-    created_at: rand((Time.now - 1.week) .. Time.now),
+    created_at: rand((Time.current - 1.week) .. Time.current),
     feasibility: %w{undecided unfeasible feasible feasible feasible feasible}.sample,
     unfeasibility_explanation: Faker::Lorem.paragraph,
     valuation_finished: [false, true].sample,
@@ -436,7 +436,7 @@ budget = Budget.where(phase: "finished").last
     title: Faker::Lorem.sentence(3).truncate(60),
     external_url: Faker::Internet.url,
     description: "<p>#{Faker::Lorem.paragraphs.join('</p><p>')}</p>",
-    created_at: rand((Time.now - 1.week) .. Time.now),
+    created_at: rand((Time.current - 1.week) .. Time.current),
     feasibility: "feasible",
     valuation_finished: true,
     selected: true,

lib/age.rb

@@ -1,5 +1,5 @@
 module Age
-  def self.in_years(dob, now = Time.now.utc.to_date)
+  def self.in_years(dob, now = Time.current.to_date)
     return nil unless dob.present?
     # reference: http://stackoverflow.com/questions/819263/get-persons-age-in-ruby#comment21200772_819263
     now.year - dob.year - ((now.month > dob.month || (now.month == dob.month && now.day >= dob.day)) ? 0 : 1)

spec/features/budgets/votes_spec.rb

@@ -3,7 +3,7 @@ require 'rails_helper'
 feature 'Votes' do
 
   background do
-    @manuela = create(:user, verified_at: Time.now)
+    @manuela = create(:user, verified_at: Time.current)
   end
 
   feature 'Investments' do

spec/models/direct_message_spec.rb

@@ -65,9 +65,9 @@ describe DirectMessage do
 
     describe "today" do
       it "should return direct messages created today" do
-        direct_message1 = create(:direct_message, created_at: Time.zone.now.beginning_of_day + 3.hours)
+        direct_message1 = create(:direct_message, created_at: Time.current.beginning_of_day + 3.hours)
-        direct_message2 = create(:direct_message, created_at: Time.zone.now)
+        direct_message2 = create(:direct_message, created_at: Time.current)
-        direct_message3 = create(:direct_message, created_at: Time.zone.now.end_of_day)
+        direct_message3 = create(:direct_message, created_at: Time.current.end_of_day)
 
         expect(DirectMessage.today.count).to eq 3
       end