public IActionResult GetDistinctTimeZones()
        {
            try
            {
                IEnumerable <string> result = repository.GetDistinctTimeZones();

                if (result != null && result.Count() > 0)
                {
                    return(Ok(result));
                }
                else
                {
                    return(NotFound());
                }
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex);
                throw;
            }
        }