什么是Calendar get DST Offset的Joda等效项

Question

I am replacing some Jdk 1.6 Calendar usage with Joda ..

I am looking for how to implement/replace the two following methods with Joda

public int getDstOffSet(long millis) {  
    Calendar calendar = Calendar.getInstance();
    calendar.clear();
    calendar.setTimeInMillis(millis);
    return calendar.get(Calendar.DST_OFFSET);
}

public int getZoneOffset(long millis) {     
    Calendar calendar = Calendar.getInstance();
    calendar.clear();
    calendar.setTimeInMillis(millis);
    return calendar.get(Calendar.ZONE_OFFSET);
}

Answer 1

Joda has a DateTimeZone class with these functions http://www.joda.org/joda-time/apidocs/org/joda/time/DateTimeZone.html

In particular, isStandardOffset will tell you if you're in DST or not, and then you can use getOffset or getStandardOffset .

This question jodatime how to know if daylight savings is on has some examples.