# NEST Search and return most recent document?
**URL:** https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938
**Category:** Elasticsearch
**Created:** [October 13, 2016, 12:43pm UTC](https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938 "2016-10-13T12:43:49Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@agonzalez](https://discuss.elastic.co/u/agonzalez)
#### Post date: [October 13, 2016, 12:43pm UTC](https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938/1 "2016-10-13T12:43:49Z")
I am indexing documents using NEST, they dont have a timestamp, is there any way to retrieve/search for the most recent inserted document? or do i have to add a timestamp to my docs when indexing and then sort by that and size(1)?
---
### Author:  [@KodrAus](https://discuss.elastic.co/u/KodrAus)
#### Post date: [October 13, 2016, 9:13pm UTC](https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938/2 "2016-10-13T21:13:48Z")
Yeh, you'll have to add a timestamp to your docs, and can use a simple `match_all` query with `size = 1` and `sort` on your timestamp field.
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### Author:  [@agonzalez](https://discuss.elastic.co/u/agonzalez)
#### Post date: [October 13, 2016, 9:16pm UTC](https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938/3 "2016-10-13T21:16:30Z")
I am trying to set a Timestamp to documents on Index but the parameter is Nest.Time how can i convert DateTime.Now to Nest.Time TimeSpan?
```
index_result = elk.Index(c, i => i
.Index("index-" + date)
.Id(asset_tag + "_appliance")
.Timestamp(DateTime.Now)
);
```
---
### Author:  [@KodrAus](https://discuss.elastic.co/u/KodrAus)
#### Post date: [October 13, 2016, 9:29pm UTC](https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938/4 "2016-10-13T21:29:44Z")
That's probably not the timestamp you want to be using.
What you want to do is add a `DateTime` (or `DateTimeOffset`) field to your document type, and that's the field you then sort on.
---
### Author:  [@agonzalez](https://discuss.elastic.co/u/agonzalez)
#### Post date: [October 13, 2016, 9:48pm UTC](https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938/5 "2016-10-13T21:48:07Z")
Thanks that worked!
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 10:12pm UTC](https://discuss.elastic.co/t/nest-search-and-return-most-recent-document/62938/6 "2017-07-05T22:12:33Z")