shared_examples_for 'date_range' do

  let!(:dec31) do
    Timecop.freeze(Time.new(2013,12,31,1,0,0)) { Order.make!(:shipped) }
  end
  let!(:jan1) do
    Timecop.freeze(Time.new(2014,1,1,11,0,0)) { Order.make!(:shipped) }
  end
  let!(:jan31) do
    Timecop.freeze(Time.new(2014,1,31,12,0,0)) { Order.make!(:shipped) }
  end
  let!(:feb1) do
    Timecop.freeze(Time.new(2014,2,1,1,0,0)) { Order.make!(:shipped) }
  end

  it "returns order that were shipped on or in between the dates specified" do
    expect(subject).to match_array [jan1, jan31]
  end

end

shared_examples_for 'matching name' do |name|

  let!(:dennis) { Customer.make!(name => 'Dennis') }
  let!(:ayden)  { Customer.make!(name => 'Ayden') }
  let!(:dean)   { Customer.make!(name => 'Dean') }

  it "returns customers that match on #{name}" do
    expect(subject).to match_array [dennis, ayden]
  end
end
shared_examples_for 'date_range' do

  let!(:dec31) do
    # 2013-12-31 01:00:00 NZ time
    Timecop.freeze(Time.zone.parse("2013-12-31 01:00:00")) { Order.make!(:shipped) }
  end
  let!(:jan1) do
    Timecop.freeze(Time.zone.parse("2014-01-01 11:00:00")) { Order.make!(:shipped) }
  end
  let!(:jan31) do
    Timecop.freeze(Time.zone.parse("2014-01-31 12:00:00")) { Order.make!(:shipped) }
  end
  let!(:feb1) do
    Timecop.freeze(Time.zone.parse("2014-02-01 01:00:00")) { Order.make!(:shipped) }
  end

  it "returns order that were shipped on or in between the dates specified" do
    expect(subject).to match_array [jan1, jan31]
  end

end

shared_examples_for 'matching name' do |name|

  let!(:dennis) { Customer.make!(name => 'Dennis') }
  let!(:ayden)  { Customer.make!(name => 'Ayden') }
  let!(:dean)   { Customer.make!(name => 'Dean') }

  it "returns customers that match on #{name}" do
    expect(subject).to match_array [dennis, ayden]
  end
end

Use NZ time on tests
Use NZ time on tests

order created / shipped time was set on UTC in tests.
Tests will pass if the time range is in UTC (current).

However, the time range should use NZ time so changed the tests first
using NZ times
