FormattedTime isomorphic issue

gistfile1.js

With the `fr-FR` locale, I have a format issue with the `<FormattedTime />` component.

If I have a date like this one: `2015-06-17T06:00:00+0000`:
Server rendering => `8:00`
Client rendering => `08:00`

I use this format:
        var formats = {
            time: {
                hhmm: {
                    hour: 'numeric',
                    minute: 'numeric'
                }
            }
        };