Splunk Search

What is the difference between now() and _time?

smanojkumar
Contributor

What is the difference between now() and _time?

Labels (1)
0 Karma
1 Solution

gcusello
SplunkTrust
SplunkTrust

Hi @smanojkumar,

_time is the timestamp of each event and it's usually extracted from the raw event.

now() is a function, it's usully used in eval statements, that returns the date and time when the search runs.

So they give you different information in the same format (epochtime).

Ciao.

Giuseppe

View solution in original post

ITWhisperer
SplunkTrust
SplunkTrust

now() is in seconds, but there is a function time() which is in my environment goes to microseconds - _time as used by makeresults is usually the same as now()

| makeresults
| eval now=now()
| eval time=time()
| fieldformat now=strftime(now,"%F %T.%9N")
| fieldformat time=strftime(time,"%F %T.%9N")
| fieldformat _time=strftime(_time,"%F %T.%9N")

gcusello
SplunkTrust
SplunkTrust

Hi @smanojkumar,

_time is the timestamp of each event and it's usually extracted from the raw event.

now() is a function, it's usully used in eval statements, that returns the date and time when the search runs.

So they give you different information in the same format (epochtime).

Ciao.

Giuseppe

Get Updates on the Splunk Community!

Meet Duke Cyberwalker | A hero’s journey with Splunk

We like to say, the lightsaber is to Luke as Splunk is to Duke. Curious yet? Then read Eric Fusilero’s latest ...

The Future of Splunk Search is Here - See What’s New!

We’re excited to introduce two powerful new search features, now generally available for Splunk Cloud Platform ...

Splunk is Nurturing Tomorrow’s Cybersecurity Leaders Today

Meet Carol Wright. She leads the Splunk Academic Alliance program at Splunk. The Splunk Academic Alliance ...