Set System Time in C#
Declarations:
[StructLayout(LayoutKind.Sequential)]
public struct SystemTime
{
[MarshalAs(UnmanagedType.U2)]
public short Year;
[MarshalAs(UnmanagedType.U2)]
public short Month;
[MarshalAs(UnmanagedType.U2)]
public short DayOfWeek;
[MarshalAs(UnmanagedType.U2)]
public short Day;
[MarshalAs(UnmanagedType.U2)]
public short Hour;
[MarshalAs(UnmanagedType.U2)]
public short Minute;
[MarshalAs(UnmanagedType.U2)]
public short Second;
[MarshalAs(UnmanagedType.U2)]
public short Milliseconds;
}
[DllImport("kernel32.dll")]
public static extern void GetLocalTime(
out SystemTime systemTime);
[DllImport("kernel32.dll")]
public static extern void GetSystemTime(
out SystemTime systemTime);
[DllImport("kernel32.dll")]
public static extern bool SetSystemTime(
ref SystemTime systemTime);
[DllImport("kernel32.dll")]
public static extern bool SetLocalTime(
ref SystemTime systemTime);
Usage :
SystemTime t;
GetLocalTime(
out t);
// do something
SetSystemTime(
ref t);