When delegating formatting of a `LocalDateTime` to javas datetime utilities, how would I format the ...

# kotlinx-datetime

[kevin.cianfarini]

When delegating formatting of a LocalDateTime to javas datetime utilities, how would I format the full date and time? Right now the value

LocalDateTime(
  year = 2023,
  monthNumber = 1,
  dayOfMonth = 17,
  hour = 10,
  minute = 30
)

Gets formatted to Tuesday, January 17, 2023 with the following invocation:

DateTimeFormatter.ofLocalizedDate(FormatStyle.FULL)
            .withLocale(javaLocale)
            .format(dateTime.toJavaLocalDateTime())

I would expect this to format to something like Tuesday, January 17, 2023 10:30 AM.

[kevin.cianfarini]

I can’t use a static pattern because the output string needs to be locale sensitive

[kevin.cianfarini]

I think this is probably a java question actually

[hfhbd]

Only a guess: use toJavaLocalDateTime()

[kevin.cianfarini]

Oh whoops I do, I also have a function for LocalDate and LocalTime.

[kevin.cianfarini]

DateTimeFormatter.ofLocalizedDate(FormatStyle.FULL)
            .withLocale(javaLocale)
            .format(dateTime.toJavaLocalDateTime())

[kevin.cianfarini]

Oh I did just see DateTimeFormatter.ofLocalizedDateTime. That’s probably what I need.

[kevin.cianfarini]

I needed to pass in separate date and time formatstyles.

DateTimeFormatter.ofLocalizedDateTime(
    FormatStyle.FULL,
    FormatStyle.SHORT
).withLocale(javaLocale).format(dateTime.toJavaLocalDateTime())

which yields

Tuesday, January 17, 2023, 10:30 AM

[kevin.cianfarini]

You cannot use the FULL format style on kotlinx.LocalDateTime for the time component because local date times don’t have timezone info embedded.