✅ Converting String To DateTimeOffset & Getting Average Days To Goal

public static string? CalculateDaysToGoal(string? startDate, string? endDate, string? hoursPerDay)
{
    DateTimeOffset startDate = DateTimeOffset.Parse(startDate);
    DateTimeOffset endDate = DateTimeOffset.Parse(endDate);
    TimeSpan differenceInDays = endDate.Subtract(startDate);

    string daysToGoal = Math.Ceil(differenceInDays / hoursPerDay).ToString();
    return daysToGoal;
}