CUBA Platform. Developer's Manual
4.5.2.1. Components

To create a date field associated with data, datasource and property attributes should be used:

<dsContext>
    <datasource id="orderDs" class="com.sample.sales.entity.Order" view="_local"/>
</dsContext>
<layout>
    <timeField datasource="orderDs" property="deliveryTime"/>

As you can see in the example above, the screen defines the orderDs data source for Order entity, which has deliveryTime attribute. The datasource attribute of the time input component contains a link to the datasource, and the property attribute – the name of the entity attribute displayed in the field.

Related entity attribute should have java.util.Date or java.sql.Time type.

The time format for representation is defined by the time datatype and is specified in the main localized messages pack in the timeFormat key.

The time format can also be specified in the timeFormat attribute. It can be either a format string, or a key in a message pack (with the msg:// prefix).

Regardless of the mentioned above format display of seconds can be controlled using showSeconds attribute. By default, seconds are displayed if the format contains "ss".

<timeField datasource="orderDs" property="createTs" showSeconds="true"/>