     app.use '/__gravity', gravity
     @server = app.listen 5000, ->
       done()
-    sandbox.useFakeTimers(new Date(Date.UTC(2019, 0, 1, 0, 0, 0)))
+    sandbox.useFakeTimers(new Date(2019,0,1,0,0,0).getTime())
 
   after ->
     @server.close()

          published: false
          author: name: 'Molly'
        }, (err, article) =>
          article.slugs[0].should.equal 'molly-clockwork-1546300800'
          done()
      )(null, {
        slugs: ['molly-clockwork']

          published: true
          author: name: 'Molly'
        }, (err, article) =>
          article.slugs[0].should.equal 'molly-clockwork-01-01-19'
          done()
      )(null, {
        slugs: ['molly-clockwork']
