Rails helper that returns if current time is contained in a time range

application_helper.rb

def current_time_between start_time, end_time
  now = Time.now
  start_time = start_time.split(':')
  end_time = end_time.split(':')

  start_time_hour = start_time.first.to_i
  start_time_min = start_time.last.to_i
  end_time_hour = end_time.first.to_i
  end_time_min = end_time.last.to_i

  (now.hour == start_time_hour ? now.min >= start_time_min : now.hour > start_time_hour) && (now.hour == end_time_hour ? now.min <= end_time_min : now.hour < end_time_hour)
end

application_helper_spec.rb

require "spec_helper"

describe ApplicationHelper do
  include ActiveSupport::Testing::TimeHelpers

  describe "#current_time_between" do
    context 'returns true' do
      it do 
        puts '8:05'
        travel_to Time.new(2004, 11, 24, 8, 05, 00) do
          expect(current_time_between('08:05', '19:50')).to be(true)
        end
      end

      it do 
        (9..19).each do |hour|
          puts "#{hour}:00"
          travel_to Time.new(2004, 11, 24, hour, 00, 00) do
            expect(current_time_between('08:05', '19:50')).to be(true)
          end
        end
      end

      it do 
        puts '19:50'
        travel_to Time.new(2004, 11, 24, 19, 50, 00) do
          expect(current_time_between('08:05', '19:50')).to be(true)
        end
      end
    end

    context 'returns false' do
      it do 
        puts '19:51'
        travel_to Time.new(2004, 11, 24, 19, 51, 00) do
          expect(current_time_between('08:05', '19:50')).to be(false)
        end
      end

      it do 
        (20..23).each do |hour|
          puts "#{hour}:00"
          travel_to Time.new(2004, 11, 24, hour, 00, 00) do
            expect(current_time_between('08:05', '19:50')).to be(false)
          end
        end
      end

      it do 
        (0..8).each do |hour|
          puts "#{hour}:00"
          travel_to Time.new(2004, 11, 24, hour, 00, 00) do
            expect(current_time_between('08:05', '19:50')).to be(false)
          end
        end
      end

      it do 
        puts '08:04'
        travel_to Time.new(2004, 11, 24, 8, 04, 00) do
          expect(current_time_between('08:05', '19:50')).to be(false)
        end
      end
    end
  end
end