# \[APP\]\[Pro\] Flow Utilities

**URL:** <https://community.homey.app/t/app-pro-flow-utilities/53027>\
**Category:** Apps\
**Tags:** tools, homey-pro\
**Created:** [October 12, 2021, 10:05am UTC](https://community.homey.app/t/app-pro-flow-utilities/53027 "2021-10-12T10:05:25Z")\
**Posts on this page:** 1\
**Showing post:** 110

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [May 12, 2022, 4:02pm UTC](https://community.homey.app/t/app-pro-flow-utilities/53027/110 "2022-05-12T16:02:52Z")

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Hi guys, I saw this post and thought of your app. Would this usecase be possible in some way?

> [@Configurable time trigger](https://community.homey.app/t/configurable-time-trigger/63532/4):
>
> usecase:
> 
> - set a time to leave (i.e. the time I need to get in my car)
> - have Homey calculate back the time to start charging, based on the “chargingtime left” (number of minutes) value that the car reports
> - start charging on “time-to-leave” -/- “chargingtime left” = “start charging time”

Maybe, combined with iCalCalendar`**` the [time to leave] variable can be set in a Google calendar appointment.  
The calc [time to leave] minus [chargingtime left] is the challenge here.  
( `**`) As far as I know, apart from Homey Alarms, there’s nowhere to input a varying timestamp/value?)

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