public async Task <ReturnPeriod> GetReturnPeriod(string collectionName, DateTime dateTimeUtc)
        {
            if (string.IsNullOrEmpty(collectionName))
            {
                return(null);
            }

            return(await _returnCalendarService.GetPeriodAsync(collectionName, _dateTimeProvider.ConvertUtcToUk(dateTimeUtc)));
        }
 public async Task <ReturnPeriod> GetPeriod(string collectionName, DateTime dateTimeUtc)
 {
     return(await _retrunCalendarService.GetPeriodAsync(collectionName, dateTimeUtc));
 }