diff --git a/ext/intl/locale/locale.h b/ext/intl/locale/locale.h
index 31aef035050d1..0dcd2c89e50a6 100644
--- a/ext/intl/locale/locale.h
+++ b/ext/intl/locale/locale.h
@@ -26,6 +26,7 @@
 #define LOC_GRANDFATHERED_LANG_TAG "grandfathered"
 #define LOC_PRIVATE_TAG "private"
 #define LOC_CANONICALIZE_TAG "canonicalize"
+#define LOC_TIMEZONE "timezone"
 
 #define LOCALE_INI_NAME "intl.default_locale"
 
diff --git a/ext/intl/locale/locale_methods.cpp b/ext/intl/locale/locale_methods.cpp
index 5cf6928a8cd3c..baf3670b3f26a 100644
--- a/ext/intl/locale/locale_methods.cpp
+++ b/ext/intl/locale/locale_methods.cpp
@@ -810,12 +810,17 @@ static int append_key_value(smart_str* loc_name, HashTable* hash_arr, const char
 			/* element value is not a string */
 			return FAILURE;
 		}
-		if(strcmp(key_name, LOC_LANG_TAG) != 0 &&
-		   strcmp(key_name, LOC_GRANDFATHERED_LANG_TAG)!=0 ) {
-			/* not lang or grandfathered tag */
-			smart_str_appendl(loc_name, SEPARATOR , sizeof(SEPARATOR)-1);
+		if(strcmp(key_name, LOC_TIMEZONE) != 0) {
+			if(strcmp(key_name, LOC_LANG_TAG) != 0 &&
+					strcmp(key_name, LOC_GRANDFATHERED_LANG_TAG)!=0) {
+				/* not lang or grandfathered tag */
+				smart_str_appendl(loc_name, SEPARATOR , sizeof(SEPARATOR)-1);
+			}
+			smart_str_appendl(loc_name, Z_STRVAL_P(ele_value) , Z_STRLEN_P(ele_value));
+		} else {
+			smart_str_appends(loc_name, "@timezone=");
+			smart_str_appendl(loc_name, Z_STRVAL_P(ele_value), Z_STRLEN_P(ele_value));
 		}
-		smart_str_appendl(loc_name, Z_STRVAL_P(ele_value) , Z_STRLEN_P(ele_value));
 		return SUCCESS;
 	}
 
@@ -991,6 +996,12 @@ U_CFUNC PHP_FUNCTION(locale_compose)
 		RETURN_FALSE;
 	}
 
+	/* Timezone */
+	result = append_key_value( loc_name, hash_arr , LOC_TIMEZONE);
+	if( !handleAppendResult( result, loc_name)){
+		RETURN_FALSE;
+	}
+
 	/* Variant */
 	result = append_multiple_key_values( loc_name, hash_arr , LOC_VARIANT_TAG);
 	if( !handleAppendResult( result, loc_name)){