# Historical tags

**URL:** <https://forum.inductiveautomation.com/t/historical-tags/11458>\
**Category:** Ignition\
**Created:** [April 4, 2016, 2:33pm UTC](https://forum.inductiveautomation.com/t/historical-tags/11458 "2016-04-04T14:33:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jado58](https://avatars.discourse-cdn.com/v4/letter/j/cdc98d/32.png) [@Jado58](https://forum.inductiveautomation.com/u/Jado58)\
**Post date:** [April 4, 2016, 2:33pm UTC](https://forum.inductiveautomation.com/t/historical-tags/11458/1 "2016-04-04T14:33:07Z")

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Hi,

I have a number of discreet tags the give me the status of each loader(calling/active) on a material system, I want to get the utilization % for the system so Created the historian tags, what is the best way to sum the times for each state( on/off). Ive looked at the the SWL table for the tags, it appears that the tags are stored under tag id, how can I find the corrisponding tag names.  
Thanks