VBA не предоставляет возможности для этого изначально, но есть Windows API, который позволит вам делать то, что вы ищете. This article описывает, как это сделать, и here - это страница MSDN на GetTimeZoneInformation
.
На странице CPearson, делают эти заявления первых:
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
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' 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).
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
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
''''''''''''''''''''''''''''''''''''''''''''''
' These give symbolic names to the time zone
' values returned by GetTimeZoneInformation .
''''''''''''''''''''''''''''''''''''''''''''''
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)
Тогда эта функция будет найти местное время пользователя и смещение от GMT:
Function LocalOffsetFromGMT(Optional AsHours As Boolean = False, _
Optional AdjustForDST As Boolean = False) As Double
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' LocalOffsetFromGMT
' This returns the amount of time in minutes (if AsHours is omitted or
' false) or hours (if AsHours is True) that should be *added* to the
' local time to get GMT. If AdjustForDST is missing or false,
' the unmodified difference is returned. (e.g., Kansas City to London
' is 6 hours normally, 5 hours during DST. If AdjustForDST is False,
' the resultif 6 hours. If AdjustForDST is True, the result is 5 hours
' if DST is in effect.)
' Note that the return type of the function is a Double not a Long. This
' is to accomodate those few places in the world where the GMT offset
' is not an even hour, such as Newfoundland, Canada, where the offset is
' on a half-hour displacement.
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Dim TBias As Long
Dim TZI As TIME_ZONE_INFORMATION
Dim DST As TIME_ZONE
DST = GetTimeZoneInformation(TZI)
If DST = TIME_ZONE_DAYLIGHT Then
If AdjustForDST = True Then
TBias = TZI.Bias + TZI.DaylightBias
Else
TBias = TZI.Bias
End If
Else
TBias = TZI.Bias
End If
If AsHours = True Then
TBias = TBias/60
End If
LocalOffsetFromGMT = TBias
End Function
Вы можете проверить код:
MsgBox (LocalOffsetFromGMT())
Затем, чтобы добавить это смещение в исходное время, вы можете сделать следующее:
OriginalTime + TIME(LocalOffsetFromGMT(True, True), 0, 0)
Спасибо, я просто представил некоторые изменения, чтобы включить необходимые декларации, необходимые перед функцией, а затем строку кода, которую я использовал для тестирования. Я проверил это с несколькими часовыми поясами и, похоже, отлично работает! –