Convert string with date of a week

Question

I've got an error when I try to convert this string to date:

String s = "Mon, 11-12-2021 - 12:00";
LocalDateTime localDateTime = LocalDateTime.parse(s, DateTimeFormatter.ofPattern("EEE, MM-dd-yyyy - HH:mm"));

I got this:

  Exception in thread "main" java.time.format.DateTimeParseException: Text 'Mon, 11-12-2021 - 12:00' could not be parsed at index 0

    at java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:1949)
    at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1851)
    at java.time.LocalDateTime.parse(LocalDateTime.java:492)
    at Main.main(Main.java:11)

Is it possible in Java to convert this string or it should be changed in some way?

score 4 · Accepted Answer · answered Nov 16 '21 at 09:11

Perhaps your locale is not English. Then you would need to pass Locale.ENGLISH to your DateTimeFormatter.

This worked for me, together with @Narcis Postolache's date change to Fri.

String s = "Fri, 11-12-2021 - 12:00";
LocalDateTime localDateTime = LocalDateTime.parse(s, DateTimeFormatter.ofPattern("EEE, MM-dd-yyyy - HH:mm", Locale.ENGLISH));

localDateTime object: 2021-11-12T12:00

score 0 · Answer 2 · answered Nov 16 '21 at 08:59

0

Try
String s = "Fri, 11-12-2021 - 12:00";

answered Nov 16 '21 at 08:59

Narcis Postolache

229
2
5

1

thanks for an answer, but it gives the same error – Natali Nov 16 '21 at 09:03

score 0 · Answer 3 · answered Nov 16 '21 at 09:14

0

Your defaul locale is not US and 11-12-2021 is not Monday it's Friday:

String s = "Fri, 11-15-2021 - 12:00";
LocalDateTime localDateTime = LocalDateTime.parse(s, 
          DateTimeFormatter.ofPattern("EEE, MM-dd-yyyy - HH:mm", Locale.US));

answered Nov 16 '21 at 09:14

Sergey Afinogenov

2,137
4
13

score 0 · Answer 4 · answered Nov 16 '21 at 09:24

For the pattern you are requesting it might be a good idea to specify a different predefined formatter according to the official documentation (have a look to see the different options)

String pattern = "Mon, 11 Dec 2021 12:00:00 GMT";
LocalDate formatter = LocalDate.parse(pattern, DateTimeFormatter.RFC_1123_DATE_TIME);

Additionally, if you don't want to convert the month you can do:

LocalDateTime local = LocalDateTime.parse("2021-12-11T12:00:00");

and then get the day of the week with:

System.out.println(local.getDayOfWeek());

Convert string with date of a week

4 Answers4