# Why do I can select two Timestamp field in Configure an index pattern **URL:** \ **Category:** Logstash\ **Created:** [November 18, 2016, 2:02pm UTC](https://discuss.elastic.co/t/why-do-i-can-select-two-timestamp-field-in-configure-an-index-pattern/66546 "2016-11-18T14:02:21Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![zoram](https://avatars.discourse-cdn.com/v4/letter/z/ebca7d/32.png) [@zoram](https://discuss.elastic.co/u/zoram)\ **Post date:** [November 18, 2016, 2:02pm UTC](https://discuss.elastic.co/t/why-do-i-can-select-two-timestamp-field-in-configure-an-index-pattern/66546/1 "2016-11-18T14:02:21Z")
Dear All, Why do I can select two Timestamp field in "Configure an index pattern". - @timestamp - timeststamp ![](https://us1.discourse-cdn.com/elastic/original/2X/e/e9a58b5df010f7fecf72c9b5fe0a78a896f75b89.png) What is different between this two time-field name? Many thanks in Advance. Regards, TK ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [November 22, 2016, 9:03pm UTC](https://discuss.elastic.co/t/why-do-i-can-select-two-timestamp-field-in-configure-an-index-pattern/66546/2 "2016-11-22T21:03:38Z")
Well, you apparently have at least one document in your indexes with a `timestamp` field. Only you know why that field exists and if its existence is a mistake or if it really should be there. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 20, 2016, 9:03pm UTC](https://discuss.elastic.co/t/why-do-i-can-select-two-timestamp-field-in-configure-an-index-pattern/66546/3 "2016-12-20T21:03:42Z")
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