# Problem with "yyyy-MM-dd'T'HH:mm:ss.SSSZ" timestamp format

**URL:** <https://forum.confluent.io/t/problem-with-yyyy-mm-ddthhss-sssz-timestamp-format/3679>\
**Category:** Kafka Connect\
**Created:** [15 December 2021 20:12 UTC](https://forum.confluent.io/t/problem-with-yyyy-mm-ddthhss-sssz-timestamp-format/3679 "2021-12-15T20:12:06Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![sapkyy](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/sapkyy/32/1410_2.png) [@sapkyy](https://forum.confluent.io/u/sapkyy)\
**Post date:** [15 December 2021 20:12 UTC](https://forum.confluent.io/t/problem-with-yyyy-mm-ddthhss-sssz-timestamp-format/3679/1 "2021-12-15T20:12:06Z")

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Hello! I’m new in Kafka Connect. Recently update Elasticsearch password and broke ELK - Kafka connect integration. Try to repair it with previous config. Part of my config is:

```auto
"transforms.convertTimestamp.format": "yyyy-MM-dd'T'HH:mm:ss.SSSZ",

```

but in this case I receive message:

```auto
Invalid value java.lang.IllegalArgumentException: Illegal pattern character 'T' for configuration TimestampConverter requires a SimpleDateFormat-compatible pattern for string timestamps: yyyy-MM-ddTHH:mm:ss.SSSZ

```

I tried remove ‘T’, but in this case part of index not working…  
What should I do? Lost 2 days with this problem…

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex019/uploads/confluentcommunity/original/1X/c49438c90c9df282e9996fdf6971be890c71b65a.svg) [@system](https://forum.confluent.io/u/system)\
**Post date:** [14 January 2022 20:12 UTC](https://forum.confluent.io/t/problem-with-yyyy-mm-ddthhss-sssz-timestamp-format/3679/2 "2022-01-14T20:12:31Z")

</div>

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