Android 格式化日期与时区

2022-01-11 00:00:00 calendar android google-calendar-api simpledateformat java

我需要将日期格式化为特定的字符串.

I need to format the date into a specific string.

我使用 SimpleDateFormat 类使用模式yyyy-MM-dd'T'HH:mm:ssZ"来格式化日期它返回当前日期为
"2013-01-04T15:51:45+0530" 但我需要 as
2013-01-04T15:51:45+05:30".

I used SimpleDateFormat class to format the date using the pattern "yyyy-MM-dd'T'HH:mm:ssZ" it returns current date as
"2013-01-04T15:51:45+0530" but I need as
"2013-01-04T15:51:45+05:30".

下面是使用的编码，

Calendar c = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ", Locale.ENGLISH);      
Log.e(C.TAG, "formatted string: "+sdf.format(c.getTime()));

输出:格式化字符串:2013-01-04T15:51:45+0530

我需要格式为 2013-01-04T15:51:45+05:30 只需在 gmt 时间之间添加冒号.

I need the format as 2013-01-04T15:51:45+05:30 just adding the colon in between gmt time.

因为我正在使用 Google 日历插入事件，所以它只接受我提到的所需格式.

Because I'm working on Google calendar to insert an event, it accepts only the required format which I have mentioned.

推荐答案

你可以使用 Joda Time反而.它的 DateTimeFormat 有一个 ZZ 格式属性，可以满足您的要求.

You can use Joda Time instead. Its DateTimeFormat has a ZZ format attribute which does what you want.

链接

一大优势:与 SimpleDateFormat 不同，DateTimeFormatter 是线程安全的.用法:

Big advantage: unlike SimpleDateFormat, DateTimeFormatter is thread safe. Usage:

DateTimeFormatter fmt = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ssZZ")
    .withLocale(Locale.ENGLISH);

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