Use SimpleDateFormatter repeatedly.

app/src/main/java/com/keylesspalace/tusky/adapter/NotificationsAdapter.java

@@ -328,6 +328,8 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
         private StatusViewData.Concrete statusViewData;
 
         private boolean useAbsoluteTime;
+        private SimpleDateFormat sdf;
+        private boolean passed1day;
 
         StatusNotificationViewHolder(View itemView, boolean useAbsoluteTime) {
             super(itemView);
@@ -353,6 +355,8 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
             contentWarningButton.setOnCheckedChangeListener(this);
 
             this.useAbsoluteTime = useAbsoluteTime;
+            sdf = new SimpleDateFormat("HH:mm:ss", Locale.getDefault());
+            passed1day = false;
         }
 
         private void showNotificationContent(boolean show) {
@@ -381,11 +385,11 @@ public class NotificationsAdapter extends RecyclerView.Adapter {
             if (useAbsoluteTime) {
                 String time;
                 if (createdAt != null) {
-                    SimpleDateFormat sdf;
+                    if (!passed1day) {
                         if (new Date().getTime() - createdAt.getTime() > 86400000L) {
+                            passed1day = true;
                             sdf = new SimpleDateFormat("MM/dd HH:mm:ss", Locale.getDefault());
-                    } else {
+                        }
-                        sdf = new SimpleDateFormat("HH:mm:ss", Locale.getDefault());
                     }
                     time = sdf.format(createdAt);
                 } else {

app/src/main/java/com/keylesspalace/tusky/adapter/StatusBaseViewHolder.java

@@ -67,6 +67,8 @@ abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
     TextView contentWarningDescription;
 
     private boolean useAbsoluteTime;
+    private SimpleDateFormat sdf;
+    private boolean passed1day;
 
     StatusBaseViewHolder(View itemView, boolean useAbsoluteTime) {
         super(itemView);
@@ -97,6 +99,8 @@ abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
         contentWarningButton = itemView.findViewById(R.id.status_content_warning_button);
 
         this.useAbsoluteTime = useAbsoluteTime;
+        sdf = new SimpleDateFormat("HH:mm:ss", Locale.getDefault());
+        passed1day = false;
     }
 
     protected abstract int getMediaPreviewHeight(Context context);
@@ -135,11 +139,11 @@ abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
         if (useAbsoluteTime) {
             String time;
             if (createdAt != null) {
-                SimpleDateFormat sdf;
+                if (!passed1day) {
                     if (new Date().getTime() - createdAt.getTime() > 86400000L) {
+                        passed1day = true;
                         sdf = new SimpleDateFormat("MM/dd HH:mm:ss", Locale.getDefault());
-                } else {
+                    }
-                    sdf = new SimpleDateFormat("HH:mm:ss", Locale.getDefault());
                 }
                 time = sdf.format(createdAt);
             } else {