diff --git a/runelite-client/src/main/java/net/runelite/client/RuneLite.java b/runelite-client/src/main/java/net/runelite/client/RuneLite.java
index 6491750a37..5b7ec9e5ba 100644
--- a/runelite-client/src/main/java/net/runelite/client/RuneLite.java
+++ b/runelite-client/src/main/java/net/runelite/client/RuneLite.java
@@ -34,6 +34,7 @@ import com.google.inject.Injector;
 import com.google.inject.Provider;
 import java.applet.Applet;
 import java.io.File;
+import java.util.Locale;
 import javax.inject.Singleton;
 import joptsimple.ArgumentAcceptingOptionSpec;
 import joptsimple.OptionParser;
@@ -119,6 +120,8 @@ public class RuneLite
 
 	public static void main(String[] args) throws Exception
 	{
+		Locale.setDefault(Locale.ENGLISH);
+
 		OptionParser parser = new OptionParser();
 		parser.accepts("developer-mode", "Enable developer tools");
 		parser.accepts("debug", "Show extra debugging output");
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/farmingtracker/FarmingTrackerPanel.java b/runelite-client/src/main/java/net/runelite/client/plugins/farmingtracker/FarmingTrackerPanel.java
index f8d461b048..4968999ecb 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/farmingtracker/FarmingTrackerPanel.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/farmingtracker/FarmingTrackerPanel.java
@@ -266,7 +266,7 @@ class FarmingTrackerPanel extends PluginPanel
 						f.append("Done ");
 						if (ldtTime.getDayOfWeek() != ldtNow.getDayOfWeek())
 						{
-							f.append(ldtTime.getDayOfWeek().getDisplayName(TextStyle.FULL, Locale.ENGLISH)).append(" ");
+							f.append(ldtTime.getDayOfWeek().getDisplayName(TextStyle.FULL, Locale.getDefault())).append(" ");
 						}
 						f.append(String.format("at %d:%02d", ldtTime.getHour(), ldtTime.getMinute()));
 						panel.getEstimate().setText(f.toString());
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotOverlay.java b/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotOverlay.java
index d3593f8e48..ff08300e3c 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotOverlay.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotOverlay.java
@@ -34,7 +34,6 @@ import java.io.IOException;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
-import java.util.Locale;
 import java.util.Queue;
 import java.util.concurrent.ConcurrentLinkedQueue;
 import java.util.function.Consumer;
@@ -53,7 +52,7 @@ import net.runelite.client.ui.overlay.OverlayPriority;
 @Slf4j
 public class ScreenshotOverlay extends Overlay
 {
-	private static final DateFormat DATE_FORMAT = new SimpleDateFormat("MMM. dd, yyyy", Locale.US);
+	private static final DateFormat DATE_FORMAT = new SimpleDateFormat("MMM. dd, yyyy");
 	private static final int REPORT_BUTTON_X_OFFSET = 404;
 	private static BufferedImage REPORT_BUTTON;
 
diff --git a/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotPlugin.java b/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotPlugin.java
index a97c134735..3d9c3668a9 100644
--- a/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotPlugin.java
+++ b/runelite-client/src/main/java/net/runelite/client/plugins/screenshot/ScreenshotPlugin.java
@@ -43,7 +43,6 @@ import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.time.LocalDate;
 import java.util.Date;
-import java.util.Locale;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.function.Consumer;
 import java.util.regex.Matcher;
@@ -70,7 +69,6 @@ import net.runelite.api.widgets.WidgetInfo;
 import static net.runelite.api.widgets.WidgetInfo.TO_GROUP;
 import net.runelite.client.Notifier;
 import static net.runelite.client.RuneLite.SCREENSHOT_DIR;
-import net.runelite.client.ui.DrawManager;
 import net.runelite.client.config.ConfigManager;
 import net.runelite.client.input.KeyManager;
 import net.runelite.client.plugins.Plugin;
@@ -78,6 +76,7 @@ import net.runelite.client.plugins.PluginDescriptor;
 import net.runelite.client.plugins.screenshot.imgur.ImageUploadRequest;
 import net.runelite.client.plugins.screenshot.imgur.ImageUploadResponse;
 import net.runelite.client.ui.ClientUI;
+import net.runelite.client.ui.DrawManager;
 import net.runelite.client.ui.NavigationButton;
 import net.runelite.client.ui.TitleToolbar;
 import net.runelite.client.ui.overlay.Overlay;
@@ -101,7 +100,7 @@ public class ScreenshotPlugin extends Plugin
 	private static final HttpUrl IMGUR_IMAGE_UPLOAD_URL = HttpUrl.parse("https://api.imgur.com/3/image");
 	private static final MediaType JSON = MediaType.parse("application/json");
 
-	static final DateFormat TIME_FORMAT = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss", Locale.US);
+	static final DateFormat TIME_FORMAT = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss");
 
 	private static final Pattern NUMBER_PATTERN = Pattern.compile("([0-9]+)");
 	private static final Pattern LEVEL_UP_PATTERN = Pattern.compile("Your ([a-zA-Z]+) (?:level is|are)? now (\\d+)\\.");