How to set the width of input where I use DateTime picker?
There is a question, which I have reviewed, but it looks like there are no issues.
Magento 2 - How to add the DateTime UI Component
Magento 2 - Date input with time picker
In my case, I tried different ways to change width of input, where is inserted date and time from DateTime picker, but it is not good.
<field name="start_date">
<argument name="data" xsi:type="array">
<item name="config" xsi:type="array">
<item name="dataType" xsi:type="string">string</item>
<item name="label" xsi:type="string" translate="true">Start Date</item>
<item name="formElement" xsi:type="string">date</item>
<item name="source" xsi:type="string">page</item>
<item name="sortOrder" xsi:type="number">50</item>
<item name="dataScope" xsi:type="string">start_date</item>
<item name="validation" xsi:type="array">
<item name="required-entry" xsi:type="boolean">true</item>
</item>
<item name="options" xsi:type="array">
<item name="dateFormat" xsi:type="string">yyyy-MM-dd</item>
<item name="timeFormat" xsi:type="string">HH:mm:ss</item>
<item name="showsTime" xsi:type="boolean">true</item>
</item>
</item>
</argument>
</field>


.admin__field-datetime input { width: 180px !important; }Really, it helps, but look a little bit hackly. It is unfortunate that there is no more beautiful solution.
– Yury Adamovich Mar 22 '20 at 17:39