How can I setup NSwag openapi2tsclient to generate correct Datetime init function?

Question

I have a BE API (.NET 5.0) and FE in React. I am using NSwag to generate swagger.json file and then openapi2tsclient to convert it to typescript file. Everything works grate. I have a base entity with Datetime in UTC. It is translated to swagger.json file as:

"creationDate": {
     "type": "string",
     "format": "date-time"
},

This object is is initialized in my generated ts file like this:

export class BaseEntity implements IBaseEntity {
    id!: string;
    creationDate!: Date;
    modifiedDate!: Date;
    createdBy!: string;
    modifiedBy!: string;

    constructor(data?: IBaseEntity) {
        if (data) {
            for (var property in data) {
                if (data.hasOwnProperty(property))
                    (<any>this)[property] = (<any>data)[property];
            }
        }
    }

    init(_data?: any) {
        if (_data) {
            this.id = _data["id"];
            this.creationDate = _data["creationDate"] ? new Date(_data["creationDate"].toString()) : <any>undefined;
            this.modifiedDate = _data["modifiedDate"] ? new Date(_data["modifiedDate"].toString()) : <any>undefined;
            this.createdBy = _data["createdBy"];
            this.modifiedBy = _data["modifiedBy"];
        }
    }

    static fromJS(data: any): BaseEntity {
        data = typeof data === 'object' ? data : {};
        let result = new BaseEntity();
        result.init(data);
        return result;
    }

    toJSON(data?: any) {
        data = typeof data === 'object' ? data : {};
        data["id"] = this.id;
        data["creationDate"] = this.creationDate ? this.creationDate.toISOString() : <any>undefined;
        data["modifiedDate"] = this.modifiedDate ? this.modifiedDate.toISOString() : <any>undefined;
        data["createdBy"] = this.createdBy;
        data["modifiedBy"] = this.modifiedBy;
        return data; 
    }
}

But now my creationDate time is not longer in UTC but in GMT.

DateTime in DB: "2022-02-19 17:49:04.5360786"

Original time (as string from BE) before init: "2022-02-19T17:49:04.5360786"

creationDate after init function: Sat Feb 19 2022 17:49:04 GMT+0100 (Central European Standard Time)

For displaying time I am using react-moment package. When I don't use typescript and my datetime goes from BE as string I can use this code to display correct time:

<Moment utc local format="DD. MM. YYYY HH:mm">
   {item.creationDate}
</Moment>

19. 02. 2022 18:49 //correct time

But when I use typescript item. And my creationDate is no longer just string but converted Date I am getting wrong time:

19. 02. 2022 17:49 // not correct time

Is there a way how can I setup NSwag openapi2tsclient to generate correct typescript file? Or what is a solution to such problem?