Splunk Search

how to use a field as timestamp for a timechart

wojtek_swiatek
Path Finder

Hello

I have events similar to:

2014-07-16 9:40:20 msg="hello" time="2014-07-16 9:40:20"
2014-07-16 10:45:20 msg="world" time="2014-07-16 03:45:20"

The first timestamp is used for indexing (which is OK for most of the cases) but I would like to use the content of the field time to build a specific timechart. How can I instruct splunk to do so?

Thank you!

Tags (2)
1 Solution

wpreston
Motivator

Splunk uses the _time field for timecharting. You can eval the value of _time to another value and timechart by it.

Try this if your time field is indexed as a string:
Fixing type with this query. Current version would cause search to fail

... your base search ... | eval NewTime=strptime(time,"%Y-%m-%d %H:%M:%S") | eval _time=NewTime | timechart count

Or this if your time field is indexed as a timestamp:

... your base search ... | eval _time=time | timechart count

View solution in original post

somesoni2
Revered Legend

Try this

your base search | eval _time=strptime(time,"%Y-%m-%d %H:%M:%S") | timechart .....

wpreston
Motivator

Splunk uses the _time field for timecharting. You can eval the value of _time to another value and timechart by it.

Try this if your time field is indexed as a string:
Fixing type with this query. Current version would cause search to fail

... your base search ... | eval NewTime=strptime(time,"%Y-%m-%d %H:%M:%S") | eval _time=NewTime | timechart count

Or this if your time field is indexed as a timestamp:

... your base search ... | eval _time=time | timechart count

wojtek_swiatek
Path Finder

Thanks. Shouldn't the first search be without eval _time=NewTime?

0 Karma
Get Updates on the Splunk Community!

Accelerating Observability as Code with the Splunk AI Assistant

We’ve seen in previous posts what Observability as Code (OaC) is and how it’s now essential for managing ...

Integrating Splunk Search API and Quarto to Create Reproducible Investigation ...

 Splunk is More Than Just the Web Console For Digital Forensics and Incident Response (DFIR) practitioners, ...

Congratulations to the 2025-2026 SplunkTrust!

Hello, Splunk Community! We are beyond thrilled to announce our newest group of SplunkTrust members!  The ...