View Code 
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Web;
5 using System.Runtime.InteropServices;
6 using Microsoft.Win32;
7
8 namespace WebApplication3
9 {
10 public class Class1
11 {
12 [StructLayout(LayoutKind.Sequential)]
13 public struct SYSTEMTIME
14 {
15 public short Year;
16 public short Month;
17 public short DayOfWeek;
18 public short Day;
19 public short Hour;
20 public short Minute;
21 public short Second;
22 public short Milliseconds;
23 /// <summary>
24 ///
25 /// </summary>
26 /// <param name="dt"></param>
27 /// <returns></returns>
28 public static implicit operator SYSTEMTIME(DateTime dt)
29 {
30 SYSTEMTIME st = new SYSTEMTIME();
31
32 st.Year = (short)dt.Year;
33 st.Month = (short)dt.Month;
34 st.DayOfWeek = (short)dt.DayOfWeek;
35 st.Day = (short)dt.Day;
36 st.Hour = (short)dt.Hour;
37 st.Minute = (short)dt.Minute;
38 st.Second = (short)dt.Second;
39 st.Milliseconds = (short)dt.Millisecond;
40 return st;
41 }
42 /// <summary>
43 ///
44 /// </summary>
45 /// <param name="st"></param>
46 /// <returns></returns>
47 public static implicit operator DateTime(SYSTEMTIME st)
48 {
49 return new DateTime(st.Year, st.Month, st.Day, st.Hour, st.Minute, st.Second, st.Milliseconds);
50 }
51 }
52
53 [StructLayout(LayoutKind.Sequential)]
54 public struct TIME_ZONE_INFORMATION
55 {
56 public int Bias;
57 [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
58 public char[] StandardName;
59 public SYSTEMTIME StandardDate;
60 public int StandardBias;
61 [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
62 public char[] DaylightName;
63 public SYSTEMTIME DaylightDate;
64 public int DaylightBias;
65 /// <summary>
66 ///
67 /// </summary>
68 /// <param name="tzi"></param>
69 public TIME_ZONE_INFORMATION(TIME_ZONE_INFORMATION tzi)
70 {
71 this = tzi;
72 DaylightName = new char[32];
73 tzi.DaylightName.CopyTo(DaylightName, 0);
74 StandardName = new char[32];
75 tzi.StandardName.CopyTo(StandardName, 0);
76 }
77 }
78 /// <summary>
79 //
80
81 /// </summary>
82 public struct REG_TIME_ZONE_INFORMATION
83 {
84 public readonly int Bias;
85 public readonly int DaylightBias;
86 public readonly SYSTEMTIME DaylightDate;
87 public readonly int StandardBias;
88 public readonly SYSTEMTIME StandardDate;
89
90 /// <summary>
91 ///
92 /// </summary>
93 /// <param name="stream"></param>
94 public REG_TIME_ZONE_INFORMATION(byte[] stream)
95 {
96 try
97 {
98 Bias = stream[0] + (stream[1] << 8) + (stream[2] << 16) + (stream[3] << 24);
99 StandardBias = stream[4] + (stream[5] << 8) + (stream[6] << 16) + (stream[7] << 24);
100 DaylightBias = stream[8] + (stream[9] << 8) + (stream[10] << 16) + (stream[11] << 24);
101 StandardDate.Year = (short)(stream[12] + (stream[13] << 8));
102 StandardDate.Month = (short)(stream[14] + (stream[15] << 8));
103 StandardDate.DayOfWeek = (short)(stream[16] + (stream[17] << 8));
104 StandardDate.Day = (short)(stream[18] + (stream[19] << 8));
105 StandardDate.Hour = (short)(stream[20] + (stream[21] << 8));
106 StandardDate.Minute = (short)(stream[22] + (stream[23] << 8));
107 StandardDate.Second = (short)(stream[24] + (stream[25] << 8));
108 StandardDate.Milliseconds = (short)(stream[26] + (stream[27] << 8));
109 DaylightDate.Year = (short)(stream[28] + (stream[29] << 8));
110 DaylightDate.Month = (short)(stream[30] + (stream[31] << 8));
111 DaylightDate.DayOfWeek = (short)(stream[32] + (stream[33] << 8));
112 DaylightDate.Day = (short)(stream[34] + (stream[35] << 8));
113 DaylightDate.Hour = (short)(stream[36] + (stream[37] << 8));
114 DaylightDate.Minute = (short)(stream[38] + (stream[39] << 8));
115 DaylightDate.Second = (short)(stream[40] + (stream[41] << 8));
116 DaylightDate.Milliseconds = (short)(stream[42] + (stream[43] << 8));
117 }
118 catch (Exception e)
119 {
120 throw new ArgumentException("REG_TIME_ZONE_INFORMATION initialization failed ", e);
121 }
122 }
123 }
124
125
126 public struct TimeZoneInfo
127 {
128 public readonly string DaylightName;
129 public readonly string Display;
130 public readonly string Name;
131 public readonly string StandardName;
132 TIME_ZONE_INFORMATION m_TZI;
133
134 public TimeZoneInfo(string name, string display, string daylightName, string standardName, REG_TIME_ZONE_INFORMATION rtzi)
135 {
136 DaylightName = daylightName;
137 Display = display;
138 Name = name;
139 StandardName = standardName;
140 m_TZI = new TIME_ZONE_INFORMATION();
141 m_TZI.Bias = rtzi.Bias;
142 m_TZI.DaylightBias = rtzi.DaylightBias;
143 m_TZI.DaylightDate = rtzi.DaylightDate;
144 m_TZI.DaylightName = new char[32];
145 DaylightName.ToCharArray().CopyTo(m_TZI.DaylightName, 0);
146 m_TZI.StandardBias = rtzi.StandardBias;
147 m_TZI.StandardDate = rtzi.StandardDate;
148 m_TZI.StandardName = new char[32];
149 StandardName.ToCharArray().CopyTo(m_TZI.StandardName, 0);
150 }
151
152 public TIME_ZONE_INFORMATION TZI
153 {
154 get
155 {
156 return new TIME_ZONE_INFORMATION(m_TZI);
157 }
158 }
159 }
160 }
161 }
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Web;
5 using System.Runtime.InteropServices;
6 using Microsoft.Win32;
7
8 namespace WebApplication3
9 {
10 public class Class1
11 {
12 [StructLayout(LayoutKind.Sequential)]
13 public struct SYSTEMTIME
14 {
15 public short Year;
16 public short Month;
17 public short DayOfWeek;
18 public short Day;
19 public short Hour;
20 public short Minute;
21 public short Second;
22 public short Milliseconds;
23 /// <summary>
24 ///
25 /// </summary>
26 /// <param name="dt"></param>
27 /// <returns></returns>
28 public static implicit operator SYSTEMTIME(DateTime dt)
29 {
30 SYSTEMTIME st = new SYSTEMTIME();
31
32 st.Year = (short)dt.Year;
33 st.Month = (short)dt.Month;
34 st.DayOfWeek = (short)dt.DayOfWeek;
35 st.Day = (short)dt.Day;
36 st.Hour = (short)dt.Hour;
37 st.Minute = (short)dt.Minute;
38 st.Second = (short)dt.Second;
39 st.Milliseconds = (short)dt.Millisecond;
40 return st;
41 }
42 /// <summary>
43 ///
44 /// </summary>
45 /// <param name="st"></param>
46 /// <returns></returns>
47 public static implicit operator DateTime(SYSTEMTIME st)
48 {
49 return new DateTime(st.Year, st.Month, st.Day, st.Hour, st.Minute, st.Second, st.Milliseconds);
50 }
51 }
52
53 [StructLayout(LayoutKind.Sequential)]
54 public struct TIME_ZONE_INFORMATION
55 {
56 public int Bias;
57 [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
58 public char[] StandardName;
59 public SYSTEMTIME StandardDate;
60 public int StandardBias;
61 [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
62 public char[] DaylightName;
63 public SYSTEMTIME DaylightDate;
64 public int DaylightBias;
65 /// <summary>
66 ///
67 /// </summary>
68 /// <param name="tzi"></param>
69 public TIME_ZONE_INFORMATION(TIME_ZONE_INFORMATION tzi)
70 {
71 this = tzi;
72 DaylightName = new char[32];
73 tzi.DaylightName.CopyTo(DaylightName, 0);
74 StandardName = new char[32];
75 tzi.StandardName.CopyTo(StandardName, 0);
76 }
77 }
78 /// <summary>
79 //
80
81 /// </summary>
82 public struct REG_TIME_ZONE_INFORMATION
83 {
84 public readonly int Bias;
85 public readonly int DaylightBias;
86 public readonly SYSTEMTIME DaylightDate;
87 public readonly int StandardBias;
88 public readonly SYSTEMTIME StandardDate;
89
90 /// <summary>
91 ///
92 /// </summary>
93 /// <param name="stream"></param>
94 public REG_TIME_ZONE_INFORMATION(byte[] stream)
95 {
96 try
97 {
98 Bias = stream[0] + (stream[1] << 8) + (stream[2] << 16) + (stream[3] << 24);
99 StandardBias = stream[4] + (stream[5] << 8) + (stream[6] << 16) + (stream[7] << 24);
100 DaylightBias = stream[8] + (stream[9] << 8) + (stream[10] << 16) + (stream[11] << 24);
101 StandardDate.Year = (short)(stream[12] + (stream[13] << 8));
102 StandardDate.Month = (short)(stream[14] + (stream[15] << 8));
103 StandardDate.DayOfWeek = (short)(stream[16] + (stream[17] << 8));
104 StandardDate.Day = (short)(stream[18] + (stream[19] << 8));
105 StandardDate.Hour = (short)(stream[20] + (stream[21] << 8));
106 StandardDate.Minute = (short)(stream[22] + (stream[23] << 8));
107 StandardDate.Second = (short)(stream[24] + (stream[25] << 8));
108 StandardDate.Milliseconds = (short)(stream[26] + (stream[27] << 8));
109 DaylightDate.Year = (short)(stream[28] + (stream[29] << 8));
110 DaylightDate.Month = (short)(stream[30] + (stream[31] << 8));
111 DaylightDate.DayOfWeek = (short)(stream[32] + (stream[33] << 8));
112 DaylightDate.Day = (short)(stream[34] + (stream[35] << 8));
113 DaylightDate.Hour = (short)(stream[36] + (stream[37] << 8));
114 DaylightDate.Minute = (short)(stream[38] + (stream[39] << 8));
115 DaylightDate.Second = (short)(stream[40] + (stream[41] << 8));
116 DaylightDate.Milliseconds = (short)(stream[42] + (stream[43] << 8));
117 }
118 catch (Exception e)
119 {
120 throw new ArgumentException("REG_TIME_ZONE_INFORMATION initialization failed ", e);
121 }
122 }
123 }
124
125
126 public struct TimeZoneInfo
127 {
128 public readonly string DaylightName;
129 public readonly string Display;
130 public readonly string Name;
131 public readonly string StandardName;
132 TIME_ZONE_INFORMATION m_TZI;
133
134 public TimeZoneInfo(string name, string display, string daylightName, string standardName, REG_TIME_ZONE_INFORMATION rtzi)
135 {
136 DaylightName = daylightName;
137 Display = display;
138 Name = name;
139 StandardName = standardName;
140 m_TZI = new TIME_ZONE_INFORMATION();
141 m_TZI.Bias = rtzi.Bias;
142 m_TZI.DaylightBias = rtzi.DaylightBias;
143 m_TZI.DaylightDate = rtzi.DaylightDate;
144 m_TZI.DaylightName = new char[32];
145 DaylightName.ToCharArray().CopyTo(m_TZI.DaylightName, 0);
146 m_TZI.StandardBias = rtzi.StandardBias;
147 m_TZI.StandardDate = rtzi.StandardDate;
148 m_TZI.StandardName = new char[32];
149 StandardName.ToCharArray().CopyTo(m_TZI.StandardName, 0);
150 }
151
152 public TIME_ZONE_INFORMATION TZI
153 {
154 get
155 {
156 return new TIME_ZONE_INFORMATION(m_TZI);
157 }
158 }
159 }
160 }
161 }
----------------------------------------------------------------------------测试--------------------------------------
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label2"
runat="server" Text="Label" ForeColor=Red></asp:Label>
<BR>
<BR>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<br />
</div>
</form>
</body>
</html>
View Code
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label2"
runat="server" Text="Label" ForeColor=Red></asp:Label>
<BR>
<BR>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<br />
</div>
</form>
</body>
</html>
View Code 1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Web;
5 using System.Web.UI;
6 using System.Web.UI.WebControls;
7 using System.Runtime.InteropServices;
8 using Microsoft.Win32;
9 using System.Collections;
10
11 namespace WebApplication3
12 {
13 public partial class _Default : System.Web.UI.Page
14 {
15
16 const string c_WinNTKey = @"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones";
17 const string c_Win9xKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones";
18 const string c_KeyDisplay = "Display ";
19 const string c_KeyDayLightName = "Dlt ";
20 const string c_KeyStandardName = "Std ";
21 const string c_KeyTZI = "TZI ";
22 static ArrayList s_TimeZones = new ArrayList();
23 /// <summary>
24 /// The main entry point for the application.
25 /// </summary>
26 [DllImport("Kernel32.dll ")]
27 static extern bool TzSpecificLocalTimeToSystemTime(ref Class1.TIME_ZONE_INFORMATION lpTimeZoneInformation, ref Class1.SYSTEMTIME lpLocalTime, ref Class1.SYSTEMTIME lpUniversalTime);
28
29 [DllImport("Kernel32.dll ")]
30 static extern bool SystemTimeToTzSpecificLocalTime(ref Class1.TIME_ZONE_INFORMATION lpTimeZone, ref Class1.SYSTEMTIME lpUniversalTime, ref Class1.SYSTEMTIME lpLocalTime);
31
32
33 protected void Page_Load(object sender, EventArgs e)
34 {
35
36 switch (Environment.OSVersion.Platform)
37 {
38 case PlatformID.Win32NT:
39 RetrieveWinNTTimeZones();
40 break;
41 case PlatformID.Win32Windows:
42 break;
43 default:
44 break;
45 }
46 DateTime dtUTC = DateTime.Now.ToUniversalTime();
47 Class1.SYSTEMTIME stUTC = dtUTC;
48 Class1.SYSTEMTIME st = new Class1.SYSTEMTIME();
49 Class1.TIME_ZONE_INFORMATION tzi;
50
51 Label2.Text = string.Format("{0,-50}{1} ", "UTC ", dtUTC.ToString());
52
53 foreach (Class1.TimeZoneInfo dzi in s_TimeZones)
54 {
55 tzi = dzi.TZI;
56 SystemTimeToTzSpecificLocalTime(ref tzi, ref stUTC, ref st);
57
58 Label1.Text += string.Format("{0, -50}{1} ", dzi.Name, ((DateTime)st).ToString())+"<BR>";
59 }
60
61
62 }
63
64
65 static void RetrieveWinNTTimeZones()
66 {
67 using (RegistryKey baseKey = Registry.LocalMachine.OpenSubKey(c_WinNTKey))
68 {
69 if (baseKey == null)
70 {
71 throw new InvalidOperationException(string.Format("Registry key {0} open failed ", c_WinNTKey));
72 }
73 string[] tzNames = baseKey.GetSubKeyNames();
74 string tzDisplay;
75 string tzDaylightName;
76 string tzStandardName;
77 byte[] tzTZI;
78
79 foreach (string tzName in tzNames)
80 {
81 using (RegistryKey tzKey = baseKey.OpenSubKey(tzName))
82 {
83 tzDisplay = tzKey.GetValue("Display", string.Empty) as string;
84 tzDaylightName = tzKey.GetValue("Dlt", string.Empty) as string;
85 tzStandardName = tzKey.GetValue("Std", string.Empty) as string;
86 tzTZI = tzKey.GetValue("TZI", string.Empty) as byte[];
87 s_TimeZones.Add(
88 new Class1.TimeZoneInfo
89 (
90 tzName, tzDisplay,
91 tzDaylightName,
92 tzStandardName,
93 new Class1.REG_TIME_ZONE_INFORMATION
94 (tzTZI)
95 )
96 );
97 }
98 }
99 }
100 }
101 //-----------------
102 }
103 }
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Web;
5 using System.Web.UI;
6 using System.Web.UI.WebControls;
7 using System.Runtime.InteropServices;
8 using Microsoft.Win32;
9 using System.Collections;
10
11 namespace WebApplication3
12 {
13 public partial class _Default : System.Web.UI.Page
14 {
15
16 const string c_WinNTKey = @"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones";
17 const string c_Win9xKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones";
18 const string c_KeyDisplay = "Display ";
19 const string c_KeyDayLightName = "Dlt ";
20 const string c_KeyStandardName = "Std ";
21 const string c_KeyTZI = "TZI ";
22 static ArrayList s_TimeZones = new ArrayList();
23 /// <summary>
24 /// The main entry point for the application.
25 /// </summary>
26 [DllImport("Kernel32.dll ")]
27 static extern bool TzSpecificLocalTimeToSystemTime(ref Class1.TIME_ZONE_INFORMATION lpTimeZoneInformation, ref Class1.SYSTEMTIME lpLocalTime, ref Class1.SYSTEMTIME lpUniversalTime);
28
29 [DllImport("Kernel32.dll ")]
30 static extern bool SystemTimeToTzSpecificLocalTime(ref Class1.TIME_ZONE_INFORMATION lpTimeZone, ref Class1.SYSTEMTIME lpUniversalTime, ref Class1.SYSTEMTIME lpLocalTime);
31
32
33 protected void Page_Load(object sender, EventArgs e)
34 {
35
36 switch (Environment.OSVersion.Platform)
37 {
38 case PlatformID.Win32NT:
39 RetrieveWinNTTimeZones();
40 break;
41 case PlatformID.Win32Windows:
42 break;
43 default:
44 break;
45 }
46 DateTime dtUTC = DateTime.Now.ToUniversalTime();
47 Class1.SYSTEMTIME stUTC = dtUTC;
48 Class1.SYSTEMTIME st = new Class1.SYSTEMTIME();
49 Class1.TIME_ZONE_INFORMATION tzi;
50
51 Label2.Text = string.Format("{0,-50}{1} ", "UTC ", dtUTC.ToString());
52
53 foreach (Class1.TimeZoneInfo dzi in s_TimeZones)
54 {
55 tzi = dzi.TZI;
56 SystemTimeToTzSpecificLocalTime(ref tzi, ref stUTC, ref st);
57
58 Label1.Text += string.Format("{0, -50}{1} ", dzi.Name, ((DateTime)st).ToString())+"<BR>";
59 }
60
61
62 }
63
64
65 static void RetrieveWinNTTimeZones()
66 {
67 using (RegistryKey baseKey = Registry.LocalMachine.OpenSubKey(c_WinNTKey))
68 {
69 if (baseKey == null)
70 {
71 throw new InvalidOperationException(string.Format("Registry key {0} open failed ", c_WinNTKey));
72 }
73 string[] tzNames = baseKey.GetSubKeyNames();
74 string tzDisplay;
75 string tzDaylightName;
76 string tzStandardName;
77 byte[] tzTZI;
78
79 foreach (string tzName in tzNames)
80 {
81 using (RegistryKey tzKey = baseKey.OpenSubKey(tzName))
82 {
83 tzDisplay = tzKey.GetValue("Display", string.Empty) as string;
84 tzDaylightName = tzKey.GetValue("Dlt", string.Empty) as string;
85 tzStandardName = tzKey.GetValue("Std", string.Empty) as string;
86 tzTZI = tzKey.GetValue("TZI", string.Empty) as byte[];
87 s_TimeZones.Add(
88 new Class1.TimeZoneInfo
89 (
90 tzName, tzDisplay,
91 tzDaylightName,
92 tzStandardName,
93 new Class1.REG_TIME_ZONE_INFORMATION
94 (tzTZI)
95 )
96 );
97 }
98 }
99 }
100 }
101 //-----------------
102 }
103 }
