C# - 在工作日开始的情况下,获得一个月内周列表的最佳方法是什么？

using System;
using System.Collections.Generic;

public class Program
{
    public static void Main()
    {
        DateTime date = new DateTime(DateTime.Now.Year, DateTime.Now.Month, 1);
        List<string> weekList = GetWeekList(date);
        Console.WriteLine("周列表:");
        foreach (string week in weekList)
        {
            Console.WriteLine(week);
        }
    }

    public static List<string> GetWeekList(DateTime date)
    {
        List<string> weekList = new List<string>();
        int daysInMonth = DateTime.DaysInMonth(date.Year, date.Month);

        for (int day = 1; day <= daysInMonth; day++)
        {
            DateTime currentDate = new DateTime(date.Year, date.Month, day);
            if (currentDate.DayOfWeek == DayOfWeek.Sunday)
            {
                weekList.Add(currentDate.ToString("yyyy-MM-dd"));
            }
        }

        return weekList;
    }
}