How to Parse and Format ISO 8601 Dates and Times in Android?

ISO 8601: Parsing Date/Time in Android

When working with web services or APIs, you may encounter date/time strings in ISO 8601 format. This standard represents dates and times in a consistent way. In Android, you can easily parse an ISO 8601 string into a Date or Time object.

Step 1: Create an ISO 8601 Formatter

<code class="java">SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");</code>

Step 2: Parse the String

<code class="java">String dtStart = "2010-10-15T09:27:37Z";
try {
    Date date = format.parse(dtStart);
    System.out.println(date);
} catch (ParseException e) {
    e.printStackTrace();
}</code>

The SimpleDateFormat class provides the parse() method to convert the ISO 8601 string into a Date object. The object represents the parsed date/time.

Step 3: Format the Output

Once you have the Date object, you can format it in any way you need:

<code class="java">SimpleDateFormat outputFormat = new SimpleDateFormat("MM/dd/yyyy");
String formattedDate = outputFormat.format(date);</code>

In this example, the SimpleDateFormat object outputFormat is created to format the date in "MM/dd/yyyy" format. The format() method is then used to apply the format to the date object, resulting in the formatted string formattedDate.

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