WTH Why can't I easily offset an input_datetime based automation

[Helldog136]

Hi!

I want to create a morning and evening routine using an automation.
I use an input_time to trigger the morning routine (this works fine)
However, I would like to use an input_number to specify the number of hours I would like to sleep.
Another automation would then use the same input_time and offset it by -input_number hours
This is really hard to do.
Why can’t we offset a time trigger by a value?
Why can’t we use an input_number as input of a time offset?

Kind regards,
Helldog136

[tom_l]

There is already a WTH for this. Please vote here:

WTH Can we have an offset on date/time helper trigger in automations

A time trigger allows you to use a date/time helper instead of a hardcoded time. Would it be possible to add an optional offset (+/-) to this, in the same way as sunrise/sunset does. Could be used in a situation like an alarm time (the date/time helper) and the automation can be triggered to run, say, 15 minutes before the date/time to turn something on to be ready for alarm time. This way changing the alarm time helper adjusts the ‘alarm’ automation and the ‘turn on before alarm’ automation