當前位置: 首頁>>代碼示例 >>用法及示例精選 >>正文

C# DateTime.IsDaylightSavingTime()用法及代碼示例


此方法用於指示DateTime的實例是否在當前時區的夏時製時間範圍內。

用法： public bool IsDaylightSavingTime ();

返回值：如果Kind屬性的值為Local或Unspecified，並且此DateTime實例的值在本地時區的夏令時範圍內，則此方法返回；如果Kind為Utc，則返回false。


以下示例程序旨在說明DateTime.IsDaylightSavingTime()方法的使用：

示例1:

// C# program to demonstrate the 
// DateTime.IsDaylightSavingTime() 
// Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
  
        // creating object of DateTime 
        DateTime date = new DateTime(2010, 1, 
                                1, 4, 0, 15); 
  
        // getting Typecode of date 
        // using IsDaylightSavingTime() method; 
        bool value = date.IsDaylightSavingTime(); 
  
        // checking the condition 
        if (value) 
            Console.WriteLine("Instance of DateTime is within the"
                               + " daylight saving time range for"+ 
                                        " the current time zone."); 
  
        else
            Console.WriteLine("Instance of DateTime is not within the"
                              + " daylight saving time range for the "+ 
                                                  "current time zone."); 
    } 
}
輸出：

Instance of DateTime is not within the daylight saving time range for the current time zone.

示例2:

// C# program to demonstrate the 
// DateTime.IsDaylightSavingTime() 
// Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
  
        // creating object of DateTime 
        DateTime date = new DateTime(1970, 1, 
                                 1, 4, 0, 15); 
  
        // getting Typecode of date 
        // using IsDaylightSavingTime() method; 
        bool value = date.IsDaylightSavingTime(); 
  
        // checking the condition 
        if (value) 
            Console.WriteLine("Instance of DateTime is within the"
                              + " daylight saving time range for "+ 
                                         "the current time zone."); 
  
        else
            Console.WriteLine("Instance of DateTime is not within the"
                              + " daylight saving time range for the "+ 
                                                 "current time zone."); 
    } 
}
輸出：

Instance of DateTime is not within the daylight saving time range for the current time zone.

參考：



相關用法


注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 DateTime.IsDaylightSavingTime() Method in C#。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。