换个API试一试
下面的代码来自
http://www.geekpedia.com/code117_Get-And-Set-The-System-Date-And-Time.html
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace Sample
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public struct SystemTime
{
public ushort Year;
public ushort Month;
public ushort DayOfWeek;
public ushort Day;
public ushort Hour;
public ushort Minute;
public ushort Second;
public ushort Millisecond;
};
[DllImport("kernel32.dll", EntryPoint = "GetSystemTime", SetLastError = true)]
public extern static void Win32GetSystemTime(ref SystemTime sysTime);
[DllImport("kernel32.dll", EntryPoint = "SetSystemTime", SetLastError = true)]
public extern static bool Win32SetSystemTime(ref SystemTime sysTime);
private void button1_Click(object sender, EventArgs e)
{
// Set system date and time
SystemTime updatedTime = new SystemTime();
updatedTime.Year = (ushort)2008;
updatedTime.Month = (ushort)4;
updatedTime.Day = (ushort)23;
// UTC time; it will be modified according to the regional settings of the target computer so the actual hour might differ
updatedTime.Hour = (ushort)10;
updatedTime.Minute = (ushort)0;
updatedTime.Second = (ushort)0;
// Call the unmanaged function that sets the new date and time instantly
Win32SetSystemTime(ref updatedTime);
// Retrieve the current system date and time
SystemTime currTime = new SystemTime();
Win32GetSystemTime(ref currTime);
// You can now use the struct to retrieve the date and time
MessageBox.Show("It's " + currTime.Hour + " o'clock. Do you know where your C# code is?");
}
}
}
