diff --git a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRHelper.java b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRHelper.java
index b6abfb854..3dd704716 100644
--- a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRHelper.java
+++ b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRHelper.java
@@ -64,6 +64,13 @@ public class CLDRHelper {
     @MetadataProvider(DateSymbolsMetadataGenerator.class)
     private static native ResourceMap<ResourceArray<StringResource>> getShortMonthMap();
 
+    public static String[] resolveWeekdays(String language, String country) {
+        return resolveDateFormatSymbols(getWeekdayMap(), language, country);
+    }
+
+    @MetadataProvider(DateSymbolsMetadataGenerator.class)
+    private static native ResourceMap<ResourceArray<StringResource>> getWeekdayMap();
+
     public static String[] resolveShortWeekdays(String language, String country) {
         return resolveDateFormatSymbols(getShortWeekdayMap(), language, country);
     }
@@ -100,4 +107,38 @@ public class CLDRHelper {
 
     @MetadataProvider(FirstDayOfWeekMetadataGenerator.class)
     public static native ResourceMap<IntResource> getFirstDayOfWeek();
+
+    public static String resolveNumberFormat(String language, String country) {
+        return resolveFormatSymbols(getNumberFormatMap(), language, country);
+    }
+
+    private static native ResourceMap<StringResource> getNumberFormatMap();
+
+    public static String resolveDecimalFormat(String language, String country) {
+        return resolveFormatSymbols(getDecimalFormatMap(), language, country);
+    }
+
+    private static native ResourceMap<StringResource> getDecimalFormatMap();
+
+    public static String resolvePercentFormat(String language, String country) {
+        return resolveFormatSymbols(getPercentFormatMap(), language, country);
+    }
+
+    private static native ResourceMap<StringResource> getPercentFormatMap();
+
+    private static String resolveFormatSymbols(ResourceMap<StringResource> map, String language, String country) {
+        String localeCode = getCode(language, country);
+        StringResource res = map.has(localeCode) ? map.get(localeCode) : map.has(language) ? map.get(language) :
+                map.get("root");
+        return res.getValue();
+    }
+
+    public static CLDRDecimalData resolveDecimalData(String language, String country) {
+        ResourceMap<CLDRDecimalData> map = getDecimalDataMap();
+        String localeCode = getCode(language, country);
+        return map.has(localeCode) ? map.get(localeCode) : map.has(language) ? map.get(language) :
+                map.get("root");
+    }
+
+    private static native ResourceMap<CLDRDecimalData> getDecimalDataMap();
 }
diff --git a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRLocale.java b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRLocale.java
index 952a3086b..398f6c6b7 100644
--- a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRLocale.java
+++ b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRLocale.java
@@ -31,6 +31,7 @@ public class CLDRLocale {
     String[] dayPeriods;
     String[] months;
     String[] shortMonths;
+    String[] weekdays;
     String[] shortWeekdays;
 
     public Map<String, String> getLanguages() {
@@ -57,6 +58,10 @@ public class CLDRLocale {
         return Arrays.copyOf(shortMonths, shortMonths.length);
     }
 
+    public String[] getWeekdays() {
+        return Arrays.copyOf(weekdays, weekdays.length);
+    }
+
     public String[] getShortWeekdays() {
         return Arrays.copyOf(shortWeekdays, shortWeekdays.length);
     }
diff --git a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRReader.java b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRReader.java
index 888808618..f821df429 100644
--- a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRReader.java
+++ b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/CLDRReader.java
@@ -106,6 +106,7 @@ public class CLDRReader {
                         readAmPms(localeName, localeInfo, root);
                         readMonths(localeName, localeInfo, root);
                         readShortMonths(localeName, localeInfo, root);
+                        readWeekdays(localeName, localeInfo, root);
                         readShortWeekdays(localeName, localeInfo, root);
                         break;
                     }
@@ -163,7 +164,7 @@ public class CLDRReader {
         JsonObject monthsJson = root.get("main").getAsJsonObject().get(localeCode).getAsJsonObject()
                 .get("dates").getAsJsonObject().get("calendars").getAsJsonObject()
                 .get("gregorian").getAsJsonObject().get("months").getAsJsonObject()
-                .get("stand-alone").getAsJsonObject().get("wide").getAsJsonObject();
+                .get("format").getAsJsonObject().get("wide").getAsJsonObject();
         locale.months = new String[12];
         for (int i = 0; i < 12; ++i) {
             locale.months[i] = monthsJson.get(String.valueOf(i + 1)).getAsString();
@@ -174,18 +175,29 @@ public class CLDRReader {
         JsonObject monthsJson = root.get("main").getAsJsonObject().get(localeCode).getAsJsonObject()
                 .get("dates").getAsJsonObject().get("calendars").getAsJsonObject()
                 .get("gregorian").getAsJsonObject().get("months").getAsJsonObject()
-                .get("stand-alone").getAsJsonObject().get("abbreviated").getAsJsonObject();
+                .get("format").getAsJsonObject().get("abbreviated").getAsJsonObject();
         locale.shortMonths = new String[12];
         for (int i = 0; i < 12; ++i) {
             locale.shortMonths[i] = monthsJson.get(String.valueOf(i + 1)).getAsString();
         }
     }
 
+    private void readWeekdays(String localeCode, CLDRLocale locale, JsonObject root) {
+        JsonObject monthsJson = root.get("main").getAsJsonObject().get(localeCode).getAsJsonObject()
+                .get("dates").getAsJsonObject().get("calendars").getAsJsonObject()
+                .get("gregorian").getAsJsonObject().get("days").getAsJsonObject()
+                .get("format").getAsJsonObject().get("wide").getAsJsonObject();
+        locale.weekdays = new String[7];
+        for (int i = 0; i < 7; ++i) {
+            locale.weekdays[i] = monthsJson.get(weekdayKeys[i]).getAsString();
+        }
+    }
+
     private void readShortWeekdays(String localeCode, CLDRLocale locale, JsonObject root) {
         JsonObject monthsJson = root.get("main").getAsJsonObject().get(localeCode).getAsJsonObject()
                 .get("dates").getAsJsonObject().get("calendars").getAsJsonObject()
                 .get("gregorian").getAsJsonObject().get("days").getAsJsonObject()
-                .get("stand-alone").getAsJsonObject().get("short").getAsJsonObject();
+                .get("format").getAsJsonObject().get("short").getAsJsonObject();
         locale.shortWeekdays = new String[7];
         for (int i = 0; i < 7; ++i) {
             locale.shortWeekdays[i] = monthsJson.get(weekdayKeys[i]).getAsString();
diff --git a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/DateSymbolsMetadataGenerator.java b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/DateSymbolsMetadataGenerator.java
index a11f77f73..424c9f9d4 100644
--- a/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/DateSymbolsMetadataGenerator.java
+++ b/teavm-classlib/src/main/java/org/teavm/classlib/impl/unicode/DateSymbolsMetadataGenerator.java
@@ -43,6 +43,10 @@ public class DateSymbolsMetadataGenerator implements MetadataGenerator {
                 return generateSymbols(context, new ResourceExtractor() {
                     @Override public String[] extract(CLDRLocale locale) { return locale.getShortMonths(); }
                 });
+            case "getWeekdayMap":
+                return generateSymbols(context, new ResourceExtractor() {
+                    @Override public String[] extract(CLDRLocale locale) { return locale.getWeekdays(); }
+                });
             case "getShortWeekdayMap":
                 return generateSymbols(context, new ResourceExtractor() {
                     @Override public String[] extract(CLDRLocale locale) { return locale.getShortWeekdays(); }
diff --git a/teavm-classlib/src/main/java/org/teavm/classlib/java/text/TDateFormatSymbols.java b/teavm-classlib/src/main/java/org/teavm/classlib/java/text/TDateFormatSymbols.java
index 0e6af286a..3cba349cc 100644
--- a/teavm-classlib/src/main/java/org/teavm/classlib/java/text/TDateFormatSymbols.java
+++ b/teavm-classlib/src/main/java/org/teavm/classlib/java/text/TDateFormatSymbols.java
@@ -14,7 +14,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package org.teavm.classlib.java.text;
 
 import java.util.Arrays;
@@ -161,10 +160,16 @@ public class TDateFormatSymbols implements TSerializable, TCloneable {
     }
 
     public String[] getWeekdays() {
+        if (weekdays == null) {
+            weekdays = CLDRHelper.resolveWeekdays(locale.getLanguage(), locale.getCountry());
+        }
         return weekdays.clone();
     }
 
     public String[][] getZoneStrings() {
+        if (zoneStrings == null) {
+            return new String[0][];
+        }
         String[][] clone = new String[zoneStrings.length][];
         for (int i = zoneStrings.length; --i >= 0;) {
             clone[i] = zoneStrings[i].clone();
diff --git a/teavm-samples/src/main/java/org/teavm/samples/DateTime.java b/teavm-samples/src/main/java/org/teavm/samples/DateTime.java
index 202d3e294..f9f369956 100644
--- a/teavm-samples/src/main/java/org/teavm/samples/DateTime.java
+++ b/teavm-samples/src/main/java/org/teavm/samples/DateTime.java
@@ -173,7 +173,7 @@ public class DateTime {
                 text = symbols.getMonths()[value] + "/" + symbols.getShortMonths()[value];
                 break;
             case Calendar.DAY_OF_WEEK:
-                text = symbols.getShortWeekdays()[value - 1];
+                text = symbols.getWeekdays()[value - 1] + "/" + symbols.getShortWeekdays()[value - 1];
                 break;
             default:
                 text = "";