# How my logs are stored in elasticsearch UTC or IST
**URL:** https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292
**Category:** Elasticsearch
**Created:** [April 17, 2019, 12:42pm UTC](https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292 "2019-04-17T12:42:57Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@shrikantgulia](https://discuss.elastic.co/u/shrikantgulia)
#### Post date: [April 17, 2019, 12:42pm UTC](https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292/1 "2019-04-17T12:42:57Z")
I want to know
how my logs are stored in elasticsearch
IST or UTC
Regards
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### Author:  [@HenningAndersen](https://discuss.elastic.co/u/HenningAndersen)
#### Post date: [April 17, 2019, 2:07pm UTC](https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292/2 "2019-04-17T14:07:53Z")
Hi @shrikantgulia,
the date data type is internally stored as a long representing milliseconds-since-the-epoch (in UTC). See:
[https://www.elastic.co/guide/en/elasticsearch/reference/current/date.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/date.html)
for more information.
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### Author:  [@shrikantgulia](https://discuss.elastic.co/u/shrikantgulia)
#### Post date: [April 17, 2019, 4:56pm UTC](https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292/3 "2019-04-17T16:56:34Z")
Hello @HenningAndersen thankyou for the response
If my data instance and elastic instance both time zone is IST
and I am getting error while indexing data
I am unable to match @timestamp field to the created field and moreover I had created the dynamic mapping
Regards
---
### Author:  [@HenningAndersen](https://discuss.elastic.co/u/HenningAndersen)
#### Post date: [May 3, 2019, 4:11pm UTC](https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292/4 "2019-05-03T16:11:42Z")
Hi @shrikantgulia,
what kind of error do you get? It would be nice if you could write up a complete reproduction scenario, including index and mapping creation and an example piece of data that fails to index. Plus the errors/responses you get. Preferably as curl snippets or kibana console snippets.
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### Author:  [@shrikantgulia](https://discuss.elastic.co/u/shrikantgulia)
#### Post date: [May 6, 2019, 12:21pm UTC](https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292/5 "2019-05-06T12:21:10Z")
@HenningAndersen
Thankyou for the response.... Sorted it
as while querying data i was facing an error
as my IST epoch was going as UTC epoch so i had to define it as IST.
Regards
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [June 3, 2019, 12:21pm UTC](https://discuss.elastic.co/t/how-my-logs-are-stored-in-elasticsearch-utc-or-ist/177292/6 "2019-06-03T12:21:12Z")
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