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TimeZoneInfo.BaseUtcOffset Property

Gets the time difference between the current time zone's standard time and Coordinated Universal Time (UTC).

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

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).

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.

The following example uses the BaseUtcOffset property to display the difference between the local time and Coordinated Universal Time (UTC).


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";


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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