How to parse threeten DateTIme

Question

I am trying to parse this DateTime:

DateTimeFormatter dateTimeFormatter = new DateTimeFormatterBuilder() .appendPattern("dd/MM/yyyy hh:mm:ss") .parseDefaulting(ChronoField.SECOND_OF_MINUTE, 0) .parseDefaulting(ChronoField.MILLI_OF_SECOND, 0) .toFormatter(); String ultimaAtualizacaoTexto = "17/12/2016 01:41:43"; LocalDateTime ultimaAtualizacaoDateTime = LocalDateTime.parse(ultimaAtualizacaoTexto, dateTimeFormatter);

But I am getting this error:

DateTimeParseException: Text '17/12/2016 01:41:43' could not be parsed: Unable to obtain LocalDateTime from TemporalAccessor: DateTimeBuilder[fields={MilliOfSecond=0, MinuteOfHour=41, MicroOfSecond=0, NanoOfSecond=0, HourOfAmPm=1, SecondOfMinute=43}, ISO, null, 2016-12-17, null], type org.threeten.bp.format.DateTimeBuilder

I am not sure what is going on... It should totally work!

Any help with this? Thanks anyway!

Leandro Borges Ferreira · Accepted Answer · 2016-12-17 16:13:05Z

1

So... I had to change "dd/MM/yyyy hh:mm:ss" to "dd/MM/yyyy HH:mm:ss"

Because hh is only for 12 am/pm hours. HH is for 24h.

answered Dec 17, 2016 at 16:13

Leandro Borges Ferreira

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Meno Hochschild Over a year ago

This is a very common error. There are tons of SO-posts containing this error. And it is not specific for Threeten or Java-8, but also common in SimpleDateFormat and Joda-Time. Some people don't even notice any problems when using "h" without am/pm-marker in formatting (effectively printing wrong data) but falsely think all is okay. This has inspired me to build some pattern sanity checks into my own time library. Other libs could surely profit from such a check, too.

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