ChineseHoliday -API to Check whether a date is a chinese holiday 中国法定节假日API

ChineseHoliday

https://github.com/gameboyLV/ChineseHoliday/tree/master

using System;
using System.Collections.Generic;
using System.Net;

public class ChineseHoliday
{
	static string specificHolidayUrl = "https://gameboylv.github.io/ChineseHoliday/data/{0}.txt";
	static string specificWorkdayUrl = "https://gameboylv.github.io/ChineseHoliday/data/{0}_w.txt";
	static TimeSpan workStartTime = new TimeSpan(9, 0, 0);
	static TimeSpan workEndTime = new TimeSpan(17, 30, 0);

	static List<DateTime> holidayOfYear(int year)
	{
		var holiday = new List<DateTime>();
		for (var i = new DateTime(year, 1, 1); i < new DateTime(year + 1, 1, 1); i = i.AddDays(1))
		{
			if (i.DayOfWeek == DayOfWeek.Saturday || i.DayOfWeek == DayOfWeek.Sunday)
				holiday.Add(i);
		}

		try
		{
			ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
			var specificHolidays = new WebClient().DownloadString(string.Format(specificHolidayUrl, year));
			foreach (var i in specificHolidays.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries))
			{
				var day = DateTime.Parse(year + "-" + i.Substring(0, 2) + "-" + i.Substring(2, 2));
				if (!holiday.Contains(day))
					holiday.Add(day);
			}

			var specificWorkday = new WebClient().DownloadString(string.Format(specificWorkdayUrl, year));
			foreach (var i in specificWorkday.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries))
			{
				var day = DateTime.Parse(year + "-" + i.Substring(0, 2) + "-" + i.Substring(2, 2));
				if (holiday.Contains(day))
					holiday.Remove(day);
			}
		}
		catch
		{

		}
		holiday.Sort();
		return holiday;
	}

	static Dictionary<int, List<DateTime>> holiday = new Dictionary<int, List<DateTime>>();

	public static List<DateTime> GetHoliday(int year)
	{
		if (!holiday.ContainsKey(year))
			holiday[year] = holidayOfYear(year);
		return holiday[year];
	}

	public static List<DateTime> GetHoliday(int year, int month)
	{
		return GetHoliday(year).FindAll(item => item.Month == month);
	}

	public static bool IsWorkingDay(DateTime time)
	{
		return !GetHoliday(time.Year).Contains(time.Date);
	}

	public static bool IsWorkingTime(DateTime time)
	{
		return IsWorkingDay(time) && time.TimeOfDay >= workStartTime && time.TimeOfDay < workEndTime;
	}
}