我想將我的當前時區的日期轉換爲UTC。從當前的TimeZone轉換爲UTC遞減2小時而不是1
結果對我來說是不可理解的。
代碼:
public static String convertToUTC(String dateStr) throws ParseException
{
Log.i("myDateFunctions", "the input param is:"+dateStr);
String uTCDateStr;
Date pickedDate = stringToDate(dateStr, "yyyy-MM-dd HH:mm:ss");
Log.i("myDateFunctions", "the input param after it is converted to Date:"+pickedDate);
TimeZone tz = TimeZone.getDefault();
Date now = new Date();
Log.i("myDateFunctions:", "my current Timezone:"+tz.getDisplayName()+" +"+(tz.getOffset(now.getTime())/3600000));
// Convert to UTC
SimpleDateFormat converter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
converter.setTimeZone(TimeZone.getTimeZone("UTC"));
uTCDateStr = converter.format(pickedDate);
Log.i("myDateFunctions", "the output, after i converted to UTC timezone:"+uTCDateStr);
return uTCDateStr;
}
而且logcat的結果是:
03-29 20:31:46.804: I/myDateFunctions(18413): the input param is:2014-04-29 20:00:00
03-29 20:31:47.005: I/myDateFunctions(18413): the input param after it is converted to Date:Tue Apr 29 20:00:00 CEST 2014
03-29 20:31:47.005: I/myDateFunctions:(18413): my current Timezone:Central European Time +1
03-29 20:31:47.005: I/myDateFunctions(18413): the output, after i converted to UTC timezone:2014-04-29 18:00:00
正如你可以看到: 我的時區爲CET (GMT + 1)
那麼,爲什麼,如果我的輸入是20:00我回到18:00而不是19:00?
您的時區是否有夏令時?如果是這樣,那可能會增加1小時到轉換(UTC不)。 –
我總是wan why爲什麼ppl在stackoverflw害怕給出答案。也許是因爲downvotes?那麼,你是對的。請將此作爲答案寫下,以便我可以接受。 –
我在猜測時使用了一條評論,因此查看列表的人不會認爲它已被回答。 –