# Getting the diff between two values has me puzzled

**URL:** <https://community.grafana.com/t/getting-the-diff-between-two-values-has-me-puzzled/18907>\
**Category:** Grafana\
**Created:** [July 2, 2019, 2:03pm UTC](https://community.grafana.com/t/getting-the-diff-between-two-values-has-me-puzzled/18907 "2019-07-02T14:03:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ytaccount77](https://avatars.discourse-cdn.com/v4/letter/y/edb3f5/32.png) [@ytaccount77](https://community.grafana.com/u/ytaccount77)\
**Post date:** [July 2, 2019, 2:03pm UTC](https://community.grafana.com/t/getting-the-diff-between-two-values-has-me-puzzled/18907/1 "2019-07-02T14:03:47Z")

</div>

I am trying to get the amount of time an object takes between certain stages.

But I’m having issues so decided to get more simple and just see if I can get the difference between two values. Warning - I’m a beginner.

_Using Graphite as the Grafana data source._

**Test Data**  
(would love to get the time between these two events but first thing first)

servers.object001.build 20 epochTime

servers.object001.config 70 epochTime

I just want a bar that says 50, but that is not to be.

On A: servers | Object001 | build

On B: servers | Object001 | config

on C: Functions | diffSeries(#B,#A)

Draw Mode: Bars

X-Axis: Series

No matter the value setting, it was never 50.

Min: 20

Max: 70

Total: 90

_Also tried just using this query, with same results._

diffSeries(servers.object001.build,servers.object001.config)

So now I’m not only frustrated but my pride is a little bruised. Any help would be greatly appreciated.