CODEWITHSUNDEEP
javadateparsingiso8601zoneddatetime
MisterIbbs
MisterIbbs

Reputation: 257

Parsing a ZonedDateTime String with timezone offset value

I am trying to parse an ISO8601 time string of format "yyyy-MM-dd'T'HH:mm:ssZ" using the below line for ZonedDateTime object:

ZonedDateTime date = ZonedDateTime.parse("2021-02-19T14:32:12+0000", DateTimeFormatter.ISO_ZONED_DATE_TIME);

However I am getting the below error when doing this:

java.time.format.DateTimeParseException: Text '2021-02-19T14:32:12+0000' could not be parsed at index 19

I cant imagine this is not allowed as the + symbol is a valid character for the parse. Can anyone assist on what is wrong here?

Upvotes: 0

Views: 904

Answers (1)

MC Emperor
MC Emperor

Reputation: 22977

That is because ISO_ZONED_DATE_TIME expects both an offset and a zone. See edit, it is not required in all cases. It is because the offset must contain a colon.

See the docs.

Use DateTimeFormatter.ofPattern("uuuu-MM-dd'T'HH:mm:ssxx", Locale.ROOT) instead. Alternatively, you could use the DateTimeFormatterBuilder:

new DateTimeFormatterBuilder()
    .append(DateTimeFormatter.ISO_DATE_TIME)
    .appendPattern("xx")
    .toFormatter(Locale.ROOT);

Edit

Only reading the summary fragment of the Javadoc is apparently not enough. The zone id is not strictly required by the ISO_ZONED_DATE_TIME, as mentioned in the comments. The second bullet point there mentions it: "If the zone ID is not available or is a ZoneOffset then the format is complete".

Upvotes: 2

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