Option Explicit
Private Type SYSTEMTIME
wYear As Integer
wMonth As Integer
wDayOfWeek As Integer
wDay As Integer
wHour As Integer
wMinute As Integer
wSecond As Integer
wMilliseconds As Integer
End Type
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' NOTE: If you are using the Windows WinAPI Viewer Add-In to get
' function declarations, not that there is an error in the
' TIME_ZONE_INFORMATION structure. It defines StandardName and
' DaylightName As 32. This is fine if you have an Option Base
' directive to set the lower bound of arrays to 1. However, if
' your Option Base directive is set to 0 or you have no
' Option Base diretive, the code won't work. Instead,
' change the (32) to (0 To 31).
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Private Type TIME_ZONE_INFORMATION
Bias As Long
StandardName(0 To 31) As Integer
StandardDate As SYSTEMTIME
StandardBias As Long
DaylightName(0 To 31) As Integer
DaylightDate As SYSTEMTIME
DaylightBias As Long
End Type
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' These give symbolic names to the time zone
' values returned by GetTimeZoneInformation .
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Private Enum TIME_ZONE
TIME_ZONE_ID_INVALID = 0 ' Cannot determine DST
TIME_ZONE_STANDARD = 1 ' Standard Time, not Daylight
TIME_ZONE_DAYLIGHT = 2 ' Daylight Time, not Standard
End Enum
Private Declare Function GetTimeZoneInformation Lib "kernel32" _
(lpTimeZoneInformation As TIME_ZONE_INFORMATION) As Long
Private Declare Sub GetSystemTime Lib "kernel32" _
(lpSystemTime As SYSTEMTIME)
Function IntArrayToString(V As Variant) As String
Dim N As Long
Dim S As String
For N = LBound(V) To UBound(V)
S = S & Chr(V(N))
Next N
IntArrayToString = S
End Function
Sub AAA()
Dim TZI As TIME_ZONE_INFORMATION
Dim DST As TIME_ZONE
Dim StandardName As String
DST = GetTimeZoneInformation(TZI)
StandardName = IntArrayToString(TZI.StandardName)
Debug.Print StandardName
End Sub
