Sync setup..

Clocker/Overall App/DataStore.swift

@@ -72,6 +72,8 @@ class DataStore: NSObject {
         if cloudTimezones != currentTimezones {
             Logger.info("Syncing local timezones with data from the ☁️")
             userDefaults.set(cloudTimezones, forKey: CLDefaultPreferenceKey)
+            NotificationCenter.default.post(name: DataStore.didSyncFromExternalSourceNotification,
+                                            object: self)
         }
     }
 
@@ -201,3 +203,7 @@ class DataStore: NSObject {
         return value.isEqual(to: NSNumber(value: 0))
     }
 }
+
+extension DataStore {
+    public static let didSyncFromExternalSourceNotification: NSNotification.Name = .init("didSyncFromExternalSourceNotification")
+}

Clocker/Panel/ParentPanelController.swift

@@ -196,8 +196,7 @@ class ParentPanelController: NSWindowController {
                                                name: NSNotification.Name.NSSystemTimeZoneDidChange,
                                                object: nil)
 
-        if DataStore.shared().shouldDisplay(.sync) {
+        NotificationCenter.default.addObserver(forName: DataStore.didSyncFromExternalSourceNotification,
-            NotificationCenter.default.addObserver(forName: NSUbiquitousKeyValueStore.didChangeExternallyNotification,
                                                object: self,
                                                queue: OperationQueue.main)
         { [weak self] _ in
@@ -206,7 +205,6 @@ class ParentPanelController: NSWindowController {
                 sSelf.setScrollViewConstraint()
             }
         }
-        }
 
         // Setup upcoming events view
         upcomingEventContainerView.setAccessibility("UpcomingEventView")

Clocker/Preferences/Appearance/AppearanceViewController.swift

@@ -359,7 +359,7 @@ class AppearanceViewController: ParentViewController {
         previewPanelTableView.reloadData()
     }
 
-    @IBAction func toggleSync(_ sender: NSSegmentedControl) {
+    @IBAction func toggleSync(_: NSSegmentedControl) {
         DataStore.shared().setupSyncNotification()
     }
 }

Clocker/Preferences/General/PreferencesViewController.swift

@@ -93,8 +93,7 @@ class PreferencesViewController: ParentViewController {
                                                name: NSNotification.Name.customLabelChanged,
                                                object: nil)
 
-        if DataStore.shared().shouldDisplay(.sync) {
+        NotificationCenter.default.addObserver(forName: DataStore.didSyncFromExternalSourceNotification,
-            NotificationCenter.default.addObserver(forName: NSUbiquitousKeyValueStore.didChangeExternallyNotification,
                                                object: self,
                                                queue: OperationQueue.main)
         { [weak self] _ in
@@ -102,7 +101,6 @@ class PreferencesViewController: ParentViewController {
                 sSelf.refreshTimezoneTableView()
             }
         }
-        }
 
         refreshTimezoneTableView()