Scala Joda时间：将UTC转换为本地时间

我想将Joda Time UTC DateTime对象转换为本地时间

这里有一个很费劲的方法，看起来很有效。但一定有更好的办法

下面是代码（在Scala中），没有周围的声明：

    val dtUTC = new DateTime("2010-10-28T04:00")
    println("dtUTC = " + dtUTC)
    val dtLocal = timestampLocal(dtUTC)
    println("local = " + dtLocal)

 def timestampLocal(dtUTC: DateTime): String = {
    // This is a laborious way to convert from UTC to local. There must be a better way.
    val instantUTC = dtUTC.getMillis
    val localDateTimeZone = DateTimeZone.getDefault
    val instantLocal = localDateTimeZone.convertUTCToLocal(instantUTC)
    val dtLocal = new DateTime(instantLocal)
    dtLocal.toString
  }

以下是输出：

dtUTC=2010-10-28T04:00:00.000+11:00

---

local=2010-10-28815:00:00.000+11:00以下是我在当前项目中使用的内容

val marketCentreTime = timeInAnotherTimezone.withZone(DateTimeZone.forID("Australia/Melbourne"))

这有用吗

编辑：

这里有一些东西在当前TZ中需要一段时间，并转换为布里斯班时间。你可以使用同样的原理

Welcome to Scala version 2.8.0.final (Java HotSpot(TM) Client VM, Java 1.6.0_21).
Type in expressions to have them evaluated.
Type :help for more information.

scala> import org.joda.time._                                            
import org.joda.time._

scala> def timestampBrisbane(date: DateTime): String = {                      
     |   date.withZone(DateTimeZone.forID("Australia/Brisbane")).toString 
     | }
timestampBrisbane: (date: org.joda.time.DateTime)String

scala> val date = new DateTime
date: org.joda.time.DateTime = 2010-10-28T16:22:03.481+11:00

scala> val dateBrisbane = timestampBrisbane(date)
dateBrisbane: String = 2010-10-28T15:22:03.481+10:00

---

完美的我把它改在更南边的墨尔本。