# Display time stamp from chart as text

**URL:** <https://discourse.nodered.org/t/display-time-stamp-from-chart-as-text/47915>\
**Category:** Dashboard\
**Created:** [1 July 2021 20:26 UTC](https://discourse.nodered.org/t/display-time-stamp-from-chart-as-text/47915 "2021-07-01T20:26:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ammarqs](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ammarqs/32/44225_2.png) [@ammarqs](https://discourse.nodered.org/u/ammarqs)\
**Post date:** [1 July 2021 20:26 UTC](https://discourse.nodered.org/t/display-time-stamp-from-chart-as-text/47915/1 "2021-07-01T20:26:26Z")

</div>

Hello,  
I am new to node-red and exploring items with small projects.  
I am getting information from MQTT client and displaying that data as a chart. The chart is displaying x as time and y as humidity. I am also displaying the Humidity as a text for easy view. I want to do the same thing with timestamp.  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/f/0fd0c7d4d963aa1cc16b09708e75155013e53b3b.png)

The agenda behind is to see when my last reading was received. right now i have to go to the chart with my mouse cursor and see what time the last reading was received.

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<div class="post-metadata">

**Author:** ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)\
**Post date:** [1 July 2021 21:23 UTC](https://discourse.nodered.org/t/display-time-stamp-from-chart-as-text/47915/2 "2021-07-01T21:23:37Z")

</div>

You can format a time and save it to a msg property, you can display it in the label with mustache `{{msg.propertyname}}`  
e.g.

```auto
[{"id":"3672ee81.81efc2","type":"inject","z":"c74669a0.6a34f8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"$floor($random()*5)+18","payloadType":"jsonata","x":140,"y":3660,"wires":[["597f573b.2c86e8"]]},{"id":"597f573b.2c86e8","type":"change","z":"c74669a0.6a34f8","name":"","rules":[{"t":"set","p":"lastReadingTime","pt":"msg","to":"$moment().tz(\"Europe/London\").format(\"HH:mm:ss\")","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":340,"y":3660,"wires":[["6bab8166.1ff9c"]]},{"id":"6bab8166.1ff9c","type":"ui_chart","z":"c74669a0.6a34f8","name":"","group":"8b5cde76.edd58","order":6,"width":0,"height":0,"label":"chart {{msg.lastReadingTime}}","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"3600","cutout":0,"useOneColor":false,"useUTC":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"outputs":1,"useDifferentColor":false,"x":560,"y":3660,"wires":[[]]},{"id":"8b5cde76.edd58","type":"ui_group","name":"","tab":"8f03e639.85956","order":1,"disp":true,"width":"12","collapse":false},{"id":"8f03e639.85956","type":"ui_tab","name":"Home","icon":"dashboard","disabled":false,"hidden":false}]

```

 ![Screenshot_20210701-222417](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/d/bd40573454fb6b7b48b7f567030acd143c430889.png)

[edit] you can also display it in a ui-text node. on any tab.

```auto
[{"id":"add35aef.da65e","type":"change","z":"c74669a0.6a34f8","name":"","rules":[{"t":"set","p":"lastReadingTime","pt":"msg","to":"$moment().tz(\"Europe/London\").format(\"HH:mm:ss\")","tot":"jsonata"}],"action":"","property":"","from":"","to":"","reg":false,"x":390,"y":3620,"wires":[["421905f3.bc678c","8f74ed03.0df328"]]},{"id":"ee0ce326.77c9b","type":"inject","z":"c74669a0.6a34f8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"$floor($random()*5)+18","payloadType":"jsonata","x":190,"y":3620,"wires":[["add35aef.da65e"]]},{"id":"421905f3.bc678c","type":"ui_chart","z":"c74669a0.6a34f8","name":"","group":"8b5cde76.edd58","order":5,"width":0,"height":0,"label":"chart ( Last reading {{msg.lastReadingTime}} )","chartType":"line","legend":"false","xformat":"HH:mm:ss","interpolate":"linear","nodata":"","dot":false,"ymin":"","ymax":"","removeOlder":1,"removeOlderPoints":"","removeOlderUnit":"3600","cutout":0,"useOneColor":false,"useUTC":false,"colors":["#1f77b4","#aec7e8","#ff7f0e","#2ca02c","#98df8a","#d62728","#ff9896","#9467bd","#c5b0d5"],"outputs":1,"useDifferentColor":false,"x":610,"y":3620,"wires":[[]]},{"id":"8f74ed03.0df328","type":"ui_text","z":"c74669a0.6a34f8","group":"8b5cde76.edd58","order":7,"width":"5","height":"1","name":"","label":"Last Reading","format":"{{msg.lastReadingTime}}","layout":"row-spread","x":650,"y":3660,"wires":[]},{"id":"8b5cde76.edd58","type":"ui_group","name":"","tab":"8f03e639.85956","order":1,"disp":true,"width":"12","collapse":false},{"id":"8f03e639.85956","type":"ui_tab","name":"Home","icon":"dashboard","disabled":false,"hidden":false}]

```

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [31 July 2021 21:23 UTC](https://discourse.nodered.org/t/display-time-stamp-from-chart-as-text/47915/3 "2021-07-31T21:23:51Z")

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