TimeZoneInfo.BaseUtcOffset Property
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Gets the time difference between the current time zone's standard time and Coordinated Universal Time (UTC).
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
Public ReadOnly Property BaseUtcOffset As TimeSpan
public TimeSpan BaseUtcOffset { get; }
Property Value
Type: System..::.TimeSpan
A TimeSpan object that indicates the time difference between the current time zone's standard time and Coordinated Universal Time (UTC).
Remarks
The time span returned by the BaseUtcOffset property can range from 14 hours (for a time zone that is 14 hours ahead of Coordinated Universal Time (UTC)) to -14 hours (for a time zone that is 14 hours behind UTC). Time zones that are ahead of UTC have a positive offset; time zones that are behind UTC have a negative offset.
The BaseUtcOffset value is represented as a whole number of minutes. It cannot include a fractional number of minutes.
The BaseUtcOffset property differs from the GetUtcOffset method in the following ways:
The BaseUtcOffset property returns the difference between UTC and the time zone's standard time; the GetUtcOffset method returns the difference between UTC and the time zone's time at a particular point in time.
The GetUtcOffset method reflects the application of any adjustment rules to the time zone; the BaseUtcOffset property does not.
Version Notes
XNA Framework
When this property is used in the XNA Framework, it throws a NotSupportedException exception.
Examples
The following example uses the BaseUtcOffset property to display the difference between the local time and Coordinated Universal Time (UTC).
Dim localZone As TimeZoneInfo = TimeZoneInfo.Local
outputBlock.Text &= String.Format("The {0} time zone is {1}:{2} {3} than Coordinated Universal Time.", _
localZone.StandardName, _
Math.Abs(localZone.BaseUtcOffset.Hours), _
Math.Abs(localZone.BaseUtcOffset.Minutes), _
IIf(localZone.BaseUtcOffset >= TimeSpan.Zero, "later", "earlier")) + vbCrLf
TimeZoneInfo localZone = TimeZoneInfo.Local;
outputBlock.Text += String.Format("The {0} time zone is {1}:{2} {3} than Coordinated Universal Time.",
localZone.DisplayName,
Math.Abs(localZone.BaseUtcOffset.Hours),
Math.Abs(localZone.BaseUtcOffset.Minutes),
(localZone.BaseUtcOffset >= TimeSpan.Zero) ? "later" : "earlier") + "\n";
Version Information
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0
Platforms
Windows Phone