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POHow to change system date in c#
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Id
17531197
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17531356
AnswerCount
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ClosedDate
2015-12-14T22:02:14.453
CommentCount
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2013-07-08T16:07:23.383
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2013-07-08T16:37:54.593
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2013-07-08T16:18:05.693
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Score
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ViewCount
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Body
<p>My program needs to be able to change the SystemDate on the machine. After looking around I found this code and implemented it, however it does not seem to change the date at all. The VM it is running on has time sync turned off, so I know the issue does not lie there. Have I made a small mistake, or is there an easier way to change the system date?</p> <pre><code>[StructLayout(LayoutKind.Sequential)] private struct SYSTEMTIME { public short wYear; public short wMonth; public short wDayOfWeek; public short wDay; public short wHour; public short wMinute; public short wSecond; public short wMilliseconds; } // Return Type: BOOL [System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint = "SetSystemTime")] [return:System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)] private static extern bool SetSystemTime([InAttribute()] ref SYSTEMTIME lpSystemTime); public bool SetSystemDateTime(DateTime newDateTime) { bool result = false; try { newDateTime = newDateTime.ToUniversalTime(); SYSTEMTIME sysTime = new SYSTEMTIME() { wYear = (short)newDateTime.Year /* must be short */, wMonth = (short)newDateTime.Month, wDayOfWeek = (short)newDateTime.DayOfWeek, wDay = (short)newDateTime.Day, wHour = (short)newDateTime.Hour, wMinute = (short)newDateTime.Minute, wSecond = (short)newDateTime.Second, wMilliseconds = (short)newDateTime.Millisecond }; result = SetSystemTime(ref sysTime); } catch (Exception) { result = false; } return result; } </code></pre>
Tags
<c#><winapi><date><datetime><time>
Title
How to change system date in c#
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1. USSergey Berezovskiy
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1. USJBelter
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