# About the number of data displayed in standard charts on the dashboard

**URL:** <https://discourse.nodered.org/t/about-the-number-of-data-displayed-in-standard-charts-on-the-dashboard/72009>\
**Category:** Dashboard\
**Tags:** chart\
**Created:** [10 December 2022 22:21 UTC](https://discourse.nodered.org/t/about-the-number-of-data-displayed-in-standard-charts-on-the-dashboard/72009 "2022-12-10T22:21:45Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![TerryT](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/terryt/32/72368_2.png) [@TerryT](https://discourse.nodered.org/u/TerryT)\
**Post date:** [13 December 2022 00:40 UTC](https://discourse.nodered.org/t/about-the-number-of-data-displayed-in-standard-charts-on-the-dashboard/72009/22 "2022-12-13T00:40:05Z")

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Understood.  
Thanks,

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [13 December 2022 16:00 UTC](https://discourse.nodered.org/t/about-the-number-of-data-displayed-in-standard-charts-on-the-dashboard/72009/23 "2022-12-13T16:00:05Z")

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To be fair, I had specifically asked for a screenshot here in order to see what the chart looks like. Sometimes screenshots can be useful. However, It is important when posting screenshots just to show the important areas.

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**Author:** ![drmibell](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/drmibell/32/8424_2.png) [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Post date:** [13 December 2022 16:45 UTC](https://discourse.nodered.org/t/about-the-number-of-data-displayed-in-standard-charts-on-the-dashboard/72009/24 "2022-12-13T16:45:15Z")

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That's fair. I didn't mean to put words in your mouth. Some of the screenshots were low on information, and it might have helped to have the flow. Banging on a keyboard is sometimes not the best kind of communication.

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**Author:** ![TerryT](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/terryt/32/72368_2.png) [@TerryT](https://discourse.nodered.org/u/TerryT)\
**Post date:** [13 December 2022 19:37 UTC](https://discourse.nodered.org/t/about-the-number-of-data-displayed-in-standard-charts-on-the-dashboard/72009/25 "2022-12-13T19:37:37Z")

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Thank you again for both suggestions.  
Regarding the solution to this problem, Colin's point is accurate, and if I immediately check the time lag of the Raspberry Pi running Node-RED, I could avoid sending a large number of meaningless screenshots.  
Since I lacked knowledge about the Pi's self-time synchronization, I believed that the Pi's time was accurate, and I misunderstood that the timestamp in Node-RED's debug window came from Pi which Node-RED was running.  
I’m sorry but these were the reason why I put off the correction of the time lag in the Pi.  
In hindsight, the problem and its solution might be trivial, but I learned a lot.  
Once again, I do appreciate supports which all of you extent to me.

Best regards,

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [27 December 2022 19:38 UTC](https://discourse.nodered.org/t/about-the-number-of-data-displayed-in-standard-charts-on-the-dashboard/72009/26 "2022-12-27T19:38:19Z")

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