Solved

GetTimeZoneInformation

Posted on 2002-07-15
2
1,521 Views
Last Modified: 2012-08-14
Hi,
I need to determine what GMT it is. I'm validating against a GMT sent from Sybase which APPEARS to give the correct GMT. Using VB I get errors because tthe VB version is an hour out. Now, using the code below, I tried looking at two dates, one in Jan, another in July. London should be one hour different. I tried Sydney too and that should make 1 hour, the opprsite way BUT the Bias I get from GetTimeZoneInformation seems to be identical. What am I doing wrong? Is there another solution? (I'm on Windows 2000, VB6)


Dim MyTZ As OS_TIME_ZONE_INFORMATION

  Call GetTimeZoneInformation(MyTZ)
  GetDateTimeGMT = Now + (MyTZ.Bias / 60) / 24
  Debug.Print Format(Date, "MMM-DD"); "  MyTZ.Bias="; MyTZ.Bias / 60
 
  sName = ""
  For i = 0 To 32
    If (MyTZ.DaylightName(i) = 0) Then Exit For
    sName = sName + Chr(MyTZ.DaylightName(i))
  Next
  Debug.Print "MyTZ.DaylightName="; sName & "MyTZ.DaylightBias="; MyTZ.DaylightBias / 60
  Debug.Print " "; MyTZ.DaylightDate.wDay & "/"; MyTZ.DaylightDate.wMonth & "/"; MyTZ.DaylightDate.wYear
  Debug.Print " "; MyTZ.DaylightDate.wHour & ":" & MyTZ.DaylightDate.wMinute;
  Debug.Print " ["; MyTZ.DaylightDate.wSecond & "s]"

  sName = ""
  For i = 0 To 32
    If (MyTZ.StandardName(i) = 0) Then Exit For
    sName = sName + Chr(MyTZ.StandardName(i))
  Next
  Debug.Print "MyTZ.StandardName="; sName; " StandardBias="; MyTZ.StandardBias
  Debug.Print " "; MyTZ.StandardDate.wDay & "/"; MyTZ.StandardDate.wMonth & "/"; MyTZ.StandardDate.wYear
  Debug.Print " "; MyTZ.StandardDate.wHour & ":" & MyTZ.StandardDate.wMinute & " ["; MyTZ.StandardDate.wSecond & "s]"


-------------GIVES------------
London Jan-15  MyTZ.Bias= 0
MyTZ.DaylightName=T Daylight Time
MyTZ.DaylightBias= 0
  0 / 1 / 5
  0 :-60 [-1s]
MyTZ.StandardName=GMT Standard Time
 StandardBias= 5046343
  2 / 0 / 10
  0 :0 [0s]


London Jul-15  MyTZ.Bias= 0
MyTZ.DaylightName=T Daylight Time
MyTZ.DaylightBias= 0
  0 / 1 / 5
  0 :-60 [-1s]
MyTZ.StandardName=GMT Standard Time
 StandardBias= 5046343
  2 / 0 / 10
  0 :0 [0s]

------------------------------------------------
Sydney-Jan15 MyTZ.Bias=-10
MyTZ.DaylightName=S Eastern Daylight Time
MyTZ.DaylightBias= 0
  0 / 2 / 5
  0 :-60
 -1s
MyTZ.StandardName=AUS Eastern Standard Time
 StandardBias= 5570625
  2 / 0 / 3
  0 :0
 0s

Sydney Jul-15  MyTZ.Bias=-10
MyTZ.DaylightName=S Eastern Daylight Time
MyTZ.DaylightBias= 0
  0 / 2 / 5
  0 :-60 [-1s]
MyTZ.StandardName=AUS Eastern Standard Time
 StandardBias= 5570625
  2 / 0 / 3
  0 :0 [0s]



0
Comment
Question by:BJStearn
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 20

Accepted Solution

by:
hes earned 50 total points
ID: 7155070
0
 
LVL 28

Expert Comment

by:Ark
ID: 7155879
Hi
Take a look on my sample at http://www.freevbcode.com/ShowCode.Asp?ID=1749

Cheers
0

Featured Post

PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction While answering a recent question about filtering a custom class collection, I realized that this could be accomplished with very little code by using the ScriptControl (SC) library.  This article will introduce you to the SC library a…
This article describes some techniques which will make your VBA or Visual Basic Classic code easier to understand and maintain, whether by you, your replacement, or another Experts-Exchange expert.
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…

740 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question