Добавил описание в заголовок

ubl-settings-datetime.glade

@@ -163,8 +163,8 @@
         <property name="margin-right">5</property>
         <property name="margin-start">5</property>
         <property name="margin-end">5</property>
-        <property name="margin-top">5</property>
-        <property name="margin-bottom">5</property>
+        <property name="margin-top">6</property>
+        <property name="margin-bottom">6</property>
         <property name="pixel-size">69</property>
         <property name="icon-name">com.ublinux.ubl-settings-datetime</property>
       </object>
@@ -192,12 +192,16 @@
                     <property name="width-request">255</property>
                     <property name="visible">True</property>
                     <property name="can-focus">False</property>
+                    <property name="valign">end</property>
                     <property name="label" translatable="yes">Date and Time</property>
-                    <property name="xalign">0.25</property>
+                    <property name="xalign">0</property>
                     <attributes>
                       <attribute name="weight" value="bold"/>
                       <attribute name="size" value="15360"/>
                     </attributes>
+                    <style>
+                      <class name="textHead"/>
+                    </style>
                   </object>
                   <packing>
                     <property name="expand">True</property>
@@ -205,6 +209,28 @@
                     <property name="position">0</property>
                   </packing>
                 </child>
+                <child>
+                  <object class="GtkLabel" id="headInfoLabel">
+                    <property name="width-request">255</property>
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <property name="valign">start</property>
+                    <property name="label" translatable="yes">Setting the system date and time</property>
+                    <property name="xalign">0</property>
+                    <attributes>
+                      <attribute name="weight" value="bold"/>
+                      <attribute name="size" value="12288"/>
+                    </attributes>
+                    <style>
+                      <class name="textHead"/>
+                    </style>
+                  </object>
+                  <packing>
+                    <property name="expand">True</property>
+                    <property name="fill">True</property>
+                    <property name="position">1</property>
+                  </packing>
+                </child>
               </object>
               <packing>
                 <property name="expand">False</property>
@@ -219,17 +245,6 @@
             <property name="position">0</property>
           </packing>
         </child>
-        <child>
-          <object class="GtkLabel">
-            <property name="visible">True</property>
-            <property name="can-focus">False</property>
-          </object>
-          <packing>
-            <property name="expand">False</property>
-            <property name="fill">True</property>
-            <property name="position">1</property>
-          </packing>
-        </child>
       </object>
       <packing>
         <property name="expand">True</property>

ubl-settings-datetime.pot

@@ -2034,6 +2034,9 @@ msgid ""
 "translated and supported by community."
 msgstr ""
 
+msgid "Setting the system date and time"
+msgstr ""
+
 msgid "Yukon"
 msgstr ""
 

ubl-settings-datetime_ru.po

@@ -1711,6 +1711,9 @@ msgstr "Настройка даты и времени в глобальной к
 msgid "Setting the date and time"
 msgstr "Настройка даты и времени"
 
+msgid "Setting the system date and time"
+msgstr "Настройка даты и времени системы"
+
 msgid "Settings the date and time"
 msgstr "Настройки даты и времени"