Purely as an informational note: require.js [does have experimental support for loading CSS](http://www.requirejs.org/docs/faq-advanced.html#css), in addition to JS. However, we aren't currently using that support, mostly because what we currently have works fine and there's no need to change. So, I think you're doing the right thing here (assuming that we need the timepicker CSS here, as per @cahrens's comment) -- I just wanted to make you aware of this option.