Java SimpleDateFormat ParseException for 12 hr format

发布于 2020-11-29 01:23:12

I am getting exception while trying to parse a date string to java.util.Date.

Here is what I am doing,

String format = "yyyy-MM-dd hh:mm a";
String strDateTime = "2016-03-04 11:30 am";

SimpleDateFormat sdformat = new SimpleDateFormat(format);
        try {
            Date date = sdformat.parse(strDateTime);
            System.out.println(sdformat.format(date));
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

and got this

java.text.ParseException: Unparseable date: "2016-03-04 11:30 am"
    at java.base/java.text.DateFormat.parse(DateFormat.java:396)
    at testing.MainClass.main(MainClass.java:18)

I have done this so many times and pattern looks correct to. may be I am not seeing what I did wrong here I am using Java 8 and my execution environment in eclipse is 8 too. until today this code was working fine.

However if I change date string to a.m. => "2016-03-04 11:30 a.m."
it parses successfully output: 2016-03-04 11:30 a.m.

This behavior is same wit LocalDateTime.

java.time.format.DateTimeParseException: Text '2016-03-04 11:30 am' could not be parsed at index 17
    at java.base/java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:2050)
    at java.base/java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1952)
    at java.base/java.time.LocalDateTime.parse(LocalDateTime.java:493)
    at testing.MainClass.main(MainClass.java:27)

All the examples of SimpleDateFormat I have seen on internet just uses "am/pm" and not "a.m./p.m." What could I be doing wrong here. -Thanks

Questioner

jaimin kansara

Viewed

Original

for (Locale locale : SimpleDateFormat.getAvailableLocales()) { SimpleDateFormat sdformat = new SimpleDateFormat(format, locale); String[] amPmStrings = sdformat.getDateFormatSymbols().getAmPmStrings(); System.out.println("Locale " + locale + ": " + amPmStrings[0] + ", " + amPmStrings[1]); }

Java SimpleDateFormat ParseException for 12 hr format

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