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

See Also

Reference

TimeZoneInfo Class

System Namespace

GetUtcOffset