diff --git a/src/main/java/de/diddiz/LogBlock/BlockChange.java b/src/main/java/de/diddiz/LogBlock/BlockChange.java
index 8bb553f..f3ed2c2 100644
--- a/src/main/java/de/diddiz/LogBlock/BlockChange.java
+++ b/src/main/java/de/diddiz/LogBlock/BlockChange.java
@@ -3,12 +3,12 @@ package de.diddiz.LogBlock;
 import static de.diddiz.util.MaterialName.materialName;
 import java.sql.ResultSet;
 import java.sql.SQLException;
-import java.text.SimpleDateFormat;
 import org.bukkit.Location;
 
+import de.diddiz.LogBlock.config.Config;
+
 public class BlockChange implements LookupCacheElement
 {
-	private final static SimpleDateFormat formatter = new SimpleDateFormat("MM-dd HH:mm:ss");
 	public final long id, date;
 	public final Location loc;
 	public final String playerName;
@@ -45,7 +45,7 @@ public class BlockChange implements LookupCacheElement
 	public String toString() {
 		final StringBuilder msg = new StringBuilder();
 		if (date > 0)
-			msg.append(formatter.format(date)).append(" ");
+			msg.append(Config.formatter.format(date)).append(" ");
 		if (playerName != null)
 			msg.append(playerName).append(" ");
 		if (signtext != null) {
diff --git a/src/main/java/de/diddiz/LogBlock/config/Config.java b/src/main/java/de/diddiz/LogBlock/config/Config.java
index 51a98f4..80da7eb 100644
--- a/src/main/java/de/diddiz/LogBlock/config/Config.java
+++ b/src/main/java/de/diddiz/LogBlock/config/Config.java
@@ -7,6 +7,7 @@ import static org.bukkit.Bukkit.getLogger;
 import static org.bukkit.Bukkit.getWorlds;
 import java.io.File;
 import java.io.IOException;
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -53,6 +54,7 @@ public class Config
 	public static Set<Integer> hiddenBlocks;
 	public static Set<String> hiddenPlayers;
 	public static Set<String> ignoredChat;
+	public static SimpleDateFormat formatter;
 
 	public static enum LogKillsLevel
 	{
@@ -99,6 +101,12 @@ public class Config
 		def.put("lookup.defaultTime", "30 minutes");
 		def.put("lookup.linesPerPage", 15);
 		def.put("lookup.linesLimit", 1500);
+		try {
+			formatter = new SimpleDateFormat(config.getString("lookup.dateFormat", "MM-dd HH:mm:ss"));
+		} catch (IllegalArgumentException e) {
+			throw new DataFormatException("Invalid specification for  date format, please see http://docs.oracle.com/javase/1.4.2/docs/api/java/text/SimpleDateFormat.html : " + e.getMessage());
+		}
+		def.put("lookup.dateFormat", "MM-dd HH:mm:ss");
 		def.put("questioner.askRollbacks", true);
 		def.put("questioner.askRedos", true);
 		def.put("questioner.askClearLogs", true);