# Node-red-contrib-bigtimer offset not working

**URL:** <https://discourse.nodered.org/t/node-red-contrib-bigtimer-offset-not-working/78997>\
**Category:** General\
**Created:** [6 June 2023 19:18 UTC](https://discourse.nodered.org/t/node-red-contrib-bigtimer-offset-not-working/78997 "2023-06-06T19:18:36Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jowa](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jowa/32/80421_2.png) [@jowa](https://discourse.nodered.org/u/jowa)\
**Post date:** [6 June 2023 19:18 UTC](https://discourse.nodered.org/t/node-red-contrib-bigtimer-offset-not-working/78997/1 "2023-06-06T19:18:36Z")

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Hi,  
with the node-red-contrib-bigtimer, if I set an "on offsset" = -7200, it does not work.  
How can I tell big timer to start 2 hours before the sunset ?  
The reason is that I have solar power to start the water pomp to water my plants with my own solar electricity.  
Thanks for help.  
Joel

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**Author:** ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Post date:** [6 June 2023 19:39 UTC](https://discourse.nodered.org/t/node-red-contrib-bigtimer-offset-not-working/78997/2 "2023-06-06T19:39:30Z")

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Hi Jowa, welcome to the forum.

Pete who wrote node-red-bigtimer does not provide support here, nor is there a Github page for the node. You might get help at his blog [tech.scargill.net](http://tech.scargill.net).

Otherwise take a look at cron plus [https://flows.nodered.org/node/node-red-contrib-cron-plus](https://flows.nodered.org/node/node-red-contrib-cron-plus) which might have the features you need.

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**Author:** ![Sean-McG](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/sean-mcg/32/54677_2.png) [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Post date:** [7 June 2023 00:22 UTC](https://discourse.nodered.org/t/node-red-contrib-bigtimer-offset-not-working/78997/3 "2023-06-07T00:22:31Z")

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The offset is in minutes not seconds so use 120

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**Author:** ![jowa](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jowa/32/80421_2.png) [@jowa](https://discourse.nodered.org/u/jowa)\
**Post date:** [7 June 2023 05:55 UTC](https://discourse.nodered.org/t/node-red-contrib-bigtimer-offset-not-working/78997/4 "2023-06-07T05:55:34Z")

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Thanks @Sean-McG. Indeed, by setting -120, the indicator has adapted by displaying the remaining time. I'll check tonight if it works as expected.  
Otherwise, I'll use cron plus as suggested by @jbudd

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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:** [21 June 2023 05:56 UTC](https://discourse.nodered.org/t/node-red-contrib-bigtimer-offset-not-working/78997/5 "2023-06-21T05:56:28Z")

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