Java format yyyy-MM-dd'T'HH:mm:ss.SSSz to yyyy-mm-dd HH:mm:ss

Java format yyyy-MM-dd'T'HH:mm:ss.SSSz to yyyy-mm-dd HH:mm:ss

To format a date string in the format yyyy-MM-dd'T'HH:mm:ss.SSSz to the format yyyy-MM-dd HH:mm:ss, you can use the java.time package introduced in Java 8. Here's how you can do it:

import java.time.Instant; import java.time.ZoneId; import java.time.format.DateTimeFormatter; public class DateTimeFormatExample { public static void main(String[] args) { // Input date string in the format yyyy-MM-dd'T'HH:mm:ss.SSSz String inputDateString = "2023-11-14T13:45:30.123Z"; // Define a DateTimeFormatter for the input format DateTimeFormatter inputFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSX"); // Parse the input date string into an Instant Instant instant = Instant.from(inputFormatter.parse(inputDateString)); // Define a DateTimeFormatter for the desired output format DateTimeFormatter outputFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"); // Convert the Instant to a desired time zone (e.g., UTC) and format it String outputDateString = instant.atZone(ZoneId.of("UTC")).format(outputFormatter); // Print the formatted date string System.out.println(outputDateString); } }

In this code:

  • We first define the input date string in the format yyyy-MM-dd'T'HH:mm:ss.SSSz.
  • We create a DateTimeFormatter (inputFormatter) to parse this input format.
  • We parse the input date string into an Instant.
  • We define another DateTimeFormatter (outputFormatter) for the desired output format yyyy-MM-dd HH:mm:ss.
  • We convert the Instant to the desired time zone (e.g., UTC) using atZone() and then format it using the outputFormatter.
  • Finally, we print the formatted date string.

Make sure to adjust the time zone (ZoneId.of(...)) to your specific requirements if needed.

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