diff --git a/KeyValueObjectMapping/DCGenericConverter.m b/KeyValueObjectMapping/DCGenericConverter.m
index 0fb3cf6..e144289 100644
--- a/KeyValueObjectMapping/DCGenericConverter.m
+++ b/KeyValueObjectMapping/DCGenericConverter.m
@@ -29,7 +29,7 @@ - (id)initWithConfiguration:(DCParserConfiguration *) configuration {
     if (self) {
         _configuration = configuration;
         _parsers = [NSArray arrayWithObjects:
-                   [DCNSDateConverter dateConverterForPattern:self.configuration.datePattern],
+                   [DCNSDateConverter dateConverterForPattern:self.configuration.datePattern locale:self.configuration.dateLocale],
                    [DCNSURLConverter urlConverter],
                    [DCNSArrayConverter arrayConverterForConfiguration: self.configuration], 
                    [DCNSSetConverter setConverterForConfiguration: self.configuration], nil];
diff --git a/KeyValueObjectMapping/DCNSDateConverter.h b/KeyValueObjectMapping/DCNSDateConverter.h
index 9e56c08..8386bc5 100644
--- a/KeyValueObjectMapping/DCNSDateConverter.h
+++ b/KeyValueObjectMapping/DCNSDateConverter.h
@@ -10,6 +10,6 @@
 #import "DCValueConverter.h"
 @interface DCNSDateConverter : NSObject <DCValueConverter>
 
-+ (DCNSDateConverter *) dateConverterForPattern: (NSString *) pattern;
++ (DCNSDateConverter *) dateConverterForPattern: (NSString *) pattern locale:(NSLocale *)locale;
 
 @end
diff --git a/KeyValueObjectMapping/DCNSDateConverter.m b/KeyValueObjectMapping/DCNSDateConverter.m
index 41c4127..07238b0 100644
--- a/KeyValueObjectMapping/DCNSDateConverter.m
+++ b/KeyValueObjectMapping/DCNSDateConverter.m
@@ -11,6 +11,7 @@
 
 @interface DCNSDateConverter()
 @property(nonatomic, strong) NSString *pattern;
+@property(nonatomic, strong) NSLocale *locale;
 - (BOOL) validDouble: (NSString *) doubleValue;
 @end
 
@@ -18,14 +19,15 @@ @implementation DCNSDateConverter
 @synthesize pattern = _pattern;
 
 
-+ (DCNSDateConverter *) dateConverterForPattern: (NSString *) pattern{
-    return [[self alloc] initWithDatePattern: pattern];
++ (DCNSDateConverter *) dateConverterForPattern: (NSString *) pattern locale:(NSLocale *)locale {
+    return [[self alloc] initWithDatePattern: pattern locale:locale];
 }
 
-- (id) initWithDatePattern: (NSString *) pattern {
+- (id) initWithDatePattern: (NSString *) pattern locale:(NSLocale *)locale {
     self = [super init];
     if (self) {
         _pattern = pattern;
+        _locale = locale;
     }
     return self;
 }
@@ -37,13 +39,19 @@ - (id)transformValue:(id)value forDynamicAttribute:(DCDynamicAttribute *)attribu
     }else{
         NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
         formatter.dateFormat = self.pattern;
+        if (self.locale) {
+            formatter.locale = self.locale;
+        }
         return [formatter dateFromString:value];
     }
 }
 - (id)serializeValue:(id)value forDynamicAttribute:(DCDynamicAttribute *)attribute {
     NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
     formatter.dateFormat = self.pattern;
-    return [formatter stringFromDate:value];    
+    if (self.locale) {
+        formatter.locale = self.locale;
+    }
+    return [formatter stringFromDate:value];
 }
 - (BOOL)canTransformValueForClass: (Class) cls {
     return [cls isSubclassOfClass:[NSDate class]];
diff --git a/KeyValueObjectMapping/DCParserConfiguration.h b/KeyValueObjectMapping/DCParserConfiguration.h
index 645ab50..6651437 100644
--- a/KeyValueObjectMapping/DCParserConfiguration.h
+++ b/KeyValueObjectMapping/DCParserConfiguration.h
@@ -12,6 +12,7 @@
 @interface DCParserConfiguration : NSObject
 
 @property(nonatomic, strong) NSString *datePattern;
+@property(nonatomic, strong) NSLocale *dateLocale;
 @property(nonatomic, strong) NSString *splitToken;
 @property(nonatomic, strong) NSString *nestedPrepertiesSplitToken;
 @property(nonatomic, readonly) NSMutableArray *objectMappers;
diff --git a/KeyValueObjectMappingTests/DCNSDateConverterTests.m b/KeyValueObjectMappingTests/DCNSDateConverterTests.m
index 0d4f906..62fd625 100644
--- a/KeyValueObjectMappingTests/DCNSDateConverterTests.m
+++ b/KeyValueObjectMappingTests/DCNSDateConverterTests.m
@@ -16,7 +16,7 @@ - (BOOL) validDouble: (NSString *) doubleValue;
 @implementation DCNSDateConverterTests
 
 - (void) testValidDouble {
-  DCNSDateConverter *convertor = [DCNSDateConverter dateConverterForPattern:@"yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"];
+  DCNSDateConverter *convertor = [DCNSDateConverter dateConverterForPattern:@"yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'" locale:nil];
   STAssertTrue([convertor validDouble:@"10"], @"Should recognize '10' as a valid double");
   STAssertTrue([convertor validDouble:@"10.0"], @"Should recognize '10.0' as a valid double");
   [@[ @"Monday, April 17, 2006", @"Monday, April 17, 2006 2:22:48 PM", @"4/17/2006 2:22:48 PM", @"Mon, 17 Apr 2006 21:22:48 GMT", @"2006-04-17 21:22:48Z", @"2006-04-17T14:22:48.2698750-07:00" ]
diff --git a/KeyValueObjectMappingTests/KeyValueObjectMappingTests.m b/KeyValueObjectMappingTests/KeyValueObjectMappingTests.m
index 797d45d..18000de 100644
--- a/KeyValueObjectMappingTests/KeyValueObjectMappingTests.m
+++ b/KeyValueObjectMappingTests/KeyValueObjectMappingTests.m
@@ -79,7 +79,7 @@ -(void) testValidJsonToTweet {
     STAssertEqualObjects(tweet.text, @"@pedroh96 cara, comecei uma lib pra iOS, se puder dar uma olhada e/ou contribuir :D KeyValue Parse for Objective-C https://t.co/NWMMc60v", @"Should have same text");
     STAssertEqualObjects(tweet.source, @"<a href=\"http://www.osfoora.com/mac\" rel=\"nofollow\">Osfoora for Mac</a>", @"Should have same source");
     STAssertNil(tweet.inReplyToStatusIdStr, @"inRepryToStatusIdStr should be null");
-    STAssertEquals(tweet.retweetCount, [NSNumber numberWithInt: 0], @"RetweetCount should be equals to 0");
+    STAssertEquals(tweet.retweetCount, [NSNumber numberWithInteger:0], @"RetweetCount should be equals to 0");
     STAssertFalse(tweet.favorited, @"favorited should be false");
     STAssertFalse(tweet.retweeted, @"favorited should be false");
     STAssertEqualObjects(tweet.createdAt, data, @"CreatedAt should be equals");
diff --git a/KeyValueObjectMappingTests/NSObject+DCKeyValueObjectMappingTests.m b/KeyValueObjectMappingTests/NSObject+DCKeyValueObjectMappingTests.m
index cb73329..410f44c 100644
--- a/KeyValueObjectMappingTests/NSObject+DCKeyValueObjectMappingTests.m
+++ b/KeyValueObjectMappingTests/NSObject+DCKeyValueObjectMappingTests.m
@@ -97,7 +97,7 @@ -(void) testValidJsonToTweet {
     STAssertEqualObjects(tweet.text, @"@pedroh96 cara, comecei uma lib pra iOS, se puder dar uma olhada e/ou contribuir :D KeyValue Parse for Objective-C https://t.co/NWMMc60v", @"Should have same text");
     STAssertEqualObjects(tweet.source, @"<a href=\"http://www.osfoora.com/mac\" rel=\"nofollow\">Osfoora for Mac</a>", @"Should have same source");
     STAssertNil(tweet.inReplyToStatusIdStr, @"inRepryToStatusIdStr should be null");
-    STAssertEquals(tweet.retweetCount, [NSNumber numberWithInt: 0], @"RetweetCount should be equals to 0");
+    STAssertEquals(tweet.retweetCount, [NSNumber numberWithInteger:0], @"RetweetCount should be equals to 0");
     STAssertFalse(tweet.favorited, @"favorited should be false");
     STAssertFalse(tweet.retweeted, @"favorited should be false");
     STAssertEqualObjects(tweet.createdAt, data, @"CreatedAt should be equals");