diff --git a/.snapshot/all/models.ts b/.snapshot/all/models.ts
index 444684b..8766559 100644
--- a/.snapshot/all/models.ts
+++ b/.snapshot/all/models.ts
@@ -17,6 +17,7 @@ export interface IProduct {
     expireDate: $types.TypeOrUndefined<string>;
     externalId: $types.TypeOrUndefinedNullable<string>;
     id: $types.TypeOrUndefined<string>;
+    modifyDates: $types.TypeOrUndefined<string[]>;
     name: $types.TypeOrUndefinedNullable<string>;
     status: $types.TypeOrUndefined<ProductStatus>;
 }
@@ -60,6 +61,7 @@ export class Product {
     public expireDate: $types.TypeOrUndefined<Date> = undefined;
     public externalId: $types.TypeOrUndefinedNullable<Guid> = undefined;
     public id: $types.TypeOrUndefined<Guid> = undefined;
+    public modifyDates: $types.TypeOrUndefined<Date[]> = undefined;
     public name: $types.TypeOrUndefinedNullable<string> = undefined;
     public status: $types.TypeOrUndefined<ProductStatus> = undefined;
     private __product!: string;
@@ -70,6 +72,7 @@ export class Product {
             expireDate: toDateOut(model.expireDate),
             externalId: model.externalId ? model.externalId.toString() : null,
             id: model.id ? model.id.toString() : Guid.empty.toString(),
+            modifyDates: model.modifyDates ? model.modifyDates.map(toDateOut) : undefined,
             name: model.name,
             status: model.status,
         };
@@ -81,6 +84,7 @@ export class Product {
         model.expireDate = toDateIn(dto.expireDate);
         model.externalId = dto.externalId ? new Guid(dto.externalId) : null;
         model.id = new Guid(dto.id);
+        model.modifyDates = dto.modifyDates ? dto.modifyDates.map(toDateIn) : [];
         model.name = dto.name;
         model.status = dto.status;
         return model;
diff --git a/__tests__/swagger/OpenAPITypesGuard.spec.ts b/__tests__/swagger/OpenAPITypesGuard.spec.ts
index 3b41018..ac0ad6c 100644
--- a/__tests__/swagger/OpenAPITypesGuard.spec.ts
+++ b/__tests__/swagger/OpenAPITypesGuard.spec.ts
@@ -66,8 +66,18 @@ describe('OpenAPITypesGuard tests', () => {
         });
     });
 
-    test('isString', () => {
-        expect(guard.isString({ type: 'string' })).toBeTruthy();
+    describe('isString', () => {
+        test('date', () => {
+            expect(guard.isString({ type: 'string', format: 'date-time' })).toBeFalsy();
+        });
+
+        test('guid', () => {
+            expect(guard.isString({ type: 'string', format: 'uuid' })).toBeFalsy();
+        });
+
+        test('string', () => {
+            expect(guard.isString({ type: 'string' })).toBeTruthy();
+        });
     });
 
     test('isDate', () => {
diff --git a/package-lock.json b/package-lock.json
index 41394b9..e662f30 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@luxbss/gengen",
-  "version": "1.0.0-rc.6",
+  "version": "1.0.0-rc.7",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 0dc20a9..b6c52b5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@luxbss/gengen",
-  "version": "1.0.0-rc.6",
+  "version": "1.0.0-rc.7",
   "description": "Tool for generating models and Angular services based on OpenAPIs and Swagger's JSON",
   "bin": {
     "gengen": "./bin/index.js"
diff --git a/src/generators/ModelsGenerator.ts b/src/generators/ModelsGenerator.ts
index 6c1e621..14d7f81 100644
--- a/src/generators/ModelsGenerator.ts
+++ b/src/generators/ModelsGenerator.ts
@@ -173,6 +173,10 @@ export class ModelsGenerator {
 
         switch (property.kind) {
             case PropertyKind.Date:
+                if (property.isCollection) {
+                    return `${modelProperty} ? ${modelProperty}.map(toDateOut) : ${UNDEFINED_STRING}`;
+                }
+
                 return `toDateOut(${modelProperty})`;
 
             case PropertyKind.Guid:
@@ -208,6 +212,10 @@ export class ModelsGenerator {
 
         switch (property.kind) {
             case PropertyKind.Date:
+                if (property.isCollection) {
+                    return `${dtoProperty} ? ${dtoProperty}.map(toDateIn) : []`;
+                }
+
                 return `toDateIn(${dtoProperty})`;
 
             case PropertyKind.Guid:
diff --git a/src/swagger/OpenAPITypesGuard.ts b/src/swagger/OpenAPITypesGuard.ts
index 2852a55..19008b9 100644
--- a/src/swagger/OpenAPITypesGuard.ts
+++ b/src/swagger/OpenAPITypesGuard.ts
@@ -25,7 +25,7 @@ export class OpenAPITypesGuard {
     }
 
     public isGuid(schema: SchemaType): schema is IOpenAPI3GuidSchema {
-        return this.isString(schema) && (schema as IOpenAPI3GuidSchema)?.format === 'uuid';
+        return (schema as IOpenAPI3StringSchema)?.type === 'string' && (schema as IOpenAPI3GuidSchema)?.format === 'uuid';
     }
 
     public isCollection(schema: SchemaType): schema is IOpenAPI3ArraySchema {
@@ -56,11 +56,11 @@ export class OpenAPITypesGuard {
     }
 
     public isString(schema: SchemaType): schema is IOpenAPI3StringSchema {
-        return (schema as IOpenAPI3StringSchema)?.type === 'string';
+        return (schema as IOpenAPI3StringSchema)?.type === 'string' && (schema as { format: string | undefined })?.format === undefined;
     }
 
     public isDate(schema: SchemaType): schema is IOpenAPI3DateSchema {
-        return this.isString(schema) && (schema as IOpenAPI3DateSchema)?.format === 'date-time';
+        return (schema as IOpenAPI3StringSchema)?.type === 'string' && (schema as IOpenAPI3DateSchema)?.format === 'date-time';
     }
 
     public isBoolean(schema: SchemaType): schema is IOpenAPI3BooleanSchema {
@@ -68,6 +68,6 @@ export class OpenAPITypesGuard {
     }
 
     public isSimple(schema: SchemaType): schema is OpenAPI3SimpleSchema {
-        return this.isGuid(schema) || this.isNumber(schema) || this.isString(schema) || this.isDate(schema) || this.isBoolean(schema);
+        return this.isGuid(schema) || this.isNumber(schema) || this.isDate(schema) || this.isString(schema) || this.isBoolean(schema);
     }
-}
+}
\ No newline at end of file
diff --git a/swagger.json b/swagger.json
index 77dea2f..2dd3fad 100644
--- a/swagger.json
+++ b/swagger.json
@@ -585,6 +585,14 @@
             "type": "string",
             "format": "date-time"
           },
+          "modifyDates": {
+            "type": "array",
+            "items": {
+              "type": "string",
+              "format": "date-time"
+            },
+            "nullable": true
+          },
           "category": {
             "$ref": "#/components/schemas/Category"
           },