Par2: UTC and Time server 2010-04-14 -- Richard Rose SYSTEMTIME GROUP,TYPE !System time struct
wYear ushort
wMonth ushort
wDayOfWeek ushort
wDay ushort
wHour ushort
wMinute ushort
wSecond ushort
wMilliseconds ushort
END
TIME_ZONE_INFORMATION GROUP
Bias LONG
StandardName byte,dim(64) !will clear to 0's
StandardDate LIKE(systemTIME)
StandardBias LONG
DaylightName byte,dim(64)
DaylightDate LIKE(SYSTEMTIME)
DaylightBias LONG
END
TZ_Info Long
StandardBias Long
DaylightBias Long
Bias Long
TZ_Info=GetTimeZoneInformation(Address(TIME_ZONE_INFORMATION))
!Clear(StandardBias) !Hours from GMT
!Clear(DaylightBias)
!Minutes Secs
Hundredths
DaylightBias = ((0 - TIME_ZONE_INFORMATION.DaylightBias) * 60 *
100)
StandardBias = ((0 - TIME_ZONE_INFORMATION.StandardBias) * 60 *
100)
Bias = ((0 - TIME_ZONE_INFORMATION.Bias) * 60 *
100)
!Message(Format(Daylightbias,@t7))
!Message(Format(Standardbias,@t7))
!Message(Format(bias,@t7))
If TZ_Info = 2 !daylight
MachineDetails.Property = 'Timezone Daylight Saving'
MachineDetails.Value = 'On'
Add(MachineDetails)
Elsif tz_Info = 1 !std
MachineDetails.Property = 'Timezone Daylight Saving'
MachineDetails.Value = 'Off'
Add(MachineDetails)
Else !No Daylight saving
MachineDetails.Property = 'Timezone Daylight Saving'
MachineDetails.Value = 'Daylight Saving Not Used In This
Region'
Add(MachineDetails)
End
MachineDetails.Property = 'Timezone Standard Bias'
!MachineDetails.Value = '(GMT ' & Format(bias,@t1) &')'
IF StandardBias > 0
MachineDetails.Value = '(GMT +' & Format(Standardbias+1,@t1) &'
Hrs)'
ElsIf StandardBias < 0
MachineDetails.Value = '(GMT -' & Format(Standardbias-1,@t1) &'
Hrs)'
Else
MachineDetails.Value = '(GMT/UTC)'
END
Add(MachineDetails)
MachineDetails.Property = 'Timezone Daylight Saving Bias'
IF DaylightBias > 0 !Greater than GMT/UTC
MachineDetails.Value = '(GMT +' & Format(DaylightBias+1,@t1) &'
Hrs)'
ElsIf DaylightBias < 0 !Less than GMT/UTC
MachineDetails.Value = '(GMT -' & Format(DaylightBias-1,@t1) &'
Hrs)'
Else
MachineDetails.Value = '(GMT/UTC)'
END
Add(MachineDetails)
MachineDetails.Property = 'Timezone Bias'
IF Bias > 0 !Greater than GMT/UTC
MachineDetails.Value = '(GMT +' & Format(Bias+1,@t1) &' Hrs)'
ElsIf Bias < 0 !Less than GMT/UTC
MachineDetails.Value = '(GMT -' & Format(Bias-1,@t1) &' Hrs)'
Else
MachineDetails.Value = '(GMT/UTC)'
END
Add(MachineDetails)
MachineDetails.Property = 'Timezone Region'
MachineDetails.Value =
GetReg(REG_CURRENT_USER,'SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time
Zones','TimeZoneKeyName')
Add(MachineDetails)
Larry Sand adds:
You can use these relationships too:
GetSystemTime(systemtime) !this is current date and time in UTC
SystemTimeToFileTime(SystemTime, FileTime) !convert to filetime
FileTimeToLocalFileTime(FileTime, LocalFileTime) !Now get the local filetime
FileTimeToSystemTime(LocalFileTime, LocalSystemTime)
The filetimes are hard to work with, that's why it's converted back to a
system time structure at the end.
The systemtime structure is easy to convert back to clarion date and times
with Date(), Deformat(), and Format().
ClarionStdDate = Date(LocalSystemTime.wMonth, |
LocalSystemTime.wDay, |
LocalSystemTime.wYear)
ClarionStdTime = Deformat(Format(LocalSystemTime.wHour, @n02) & |
Format(LocalSystemTime.wMinute, @n02) &|
Format(LocalSystemTime.wSecond, @n02), @T5)
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