# Is it dangerous to change \`dateFormat:tz\` from the default\`Browser\`?

**URL:** <https://discuss.elastic.co/t/is-it-dangerous-to-change-dateformat-tz-from-the-default-browser/96996>\
**Category:** Kibana\
**Created:** [August 14, 2017, 3:55pm UTC](https://discuss.elastic.co/t/is-it-dangerous-to-change-dateformat-tz-from-the-default-browser/96996 "2017-08-14T15:55:45Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![vkatsikaros](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vkatsikaros/32/110600_2.png) [@vkatsikaros](https://discuss.elastic.co/u/vkatsikaros)\
**Post date:** [August 14, 2017, 3:55pm UTC](https://discuss.elastic.co/t/is-it-dangerous-to-change-dateformat-tz-from-the-default-browser/96996/1 "2017-08-14T15:55:45Z")

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I would like to have timestamps displayed in Kibana in UTC. I have seen [this post](https://discuss.elastic.co/t/kibana-timestamp-in-browser-local-time-but-incoming-logs-utc/57501/2) that suggest the `dateFormat:tz` should be changed from its default `Browser` value.

However, the header of the page is a bit ominous saying:

> Caution: You can break stuff here  
> Be careful in here, these settings are for very advanced users only. Tweaks you make here can break large portionsof Kibana. ...

So, since I lack the Kibana experience, I would like to ask a stupid 🙂 question, is it dangerous to change this setting?

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**Author:** ![bhavyarm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bhavyarm/32/22392_2.png) [@bhavyarm](https://discuss.elastic.co/u/bhavyarm)\
**Post date:** [August 14, 2017, 4:15pm UTC](https://discuss.elastic.co/t/is-it-dangerous-to-change-dateformat-tz-from-the-default-browser/96996/2 "2017-08-14T16:15:57Z")

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Hi,

Not really :). Your timestamp on your timeseries data will be on browser time.

But as with anything - may be you want to test it in your local before putting it out on production?

Thanks,  
Bhavya

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**Author:** ![vkatsikaros](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vkatsikaros/32/110600_2.png) [@vkatsikaros](https://discuss.elastic.co/u/vkatsikaros)\
**Post date:** [August 14, 2017, 4:36pm UTC](https://discuss.elastic.co/t/is-it-dangerous-to-change-dateformat-tz-from-the-default-browser/96996/3 "2017-08-14T16:36:43Z")

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Thanks, if it's safe enough it's ok for me!

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**Author:** ![LeeDr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leedr/32/9289_2.png) [@LeeDr](https://discuss.elastic.co/u/LeeDr)\
**Post date:** [August 14, 2017, 8:13pm UTC](https://discuss.elastic.co/t/is-it-dangerous-to-change-dateformat-tz-from-the-default-browser/96996/4 "2017-08-14T20:13:43Z")

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Just keep in mind that those settings are global and affect all the users of your Kibana instance.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 11, 2017, 8:13pm UTC](https://discuss.elastic.co/t/is-it-dangerous-to-change-dateformat-tz-from-the-default-browser/96996/5 "2017-09-11T20:13:47Z")

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