We have the following definition:

 class: info.magnolia.ui.form.field.definition.CompositeFieldDefinition
                fields:
                  - name: date
                    time: false
                    type: Date
                    required: true
                    class: info.magnolia.ui.form.field.definition.DateFieldDefinition

So we use it to indicate it a date.

It does hoever start with indicating a time zone in gray. Currently it displays:

Timezone: GMT + 1

Last week (still in summertime) it indicated: GMT + 2.

If someone last week indicate a date of this week, the date was stored according to GMT+2, and hence actually on the wrong date. (because dates are stored as timestamps at midnight)

I propose:
1. The timezone should be evaluated at the time of the time indicated, not at the current time.
2. For date fields showing a timezone is a bit odd, and could be ommitted.