ok thanks . can you tell me how I reset the time picker. now it start everyday at the time I was setting in time picker
automations:
You donāt have to do anything with the time picker card.
All you need to do is set a different time in the input_datetime entity. You can do that however you wantā¦you can use the time picker, or the UI input, or thru an automation service. Do it however you would otherwise before you even installed the time picker card.
i have never used it beforeā¦ new to HA 
Have you looked at the docs for the input_datetime?
Have you tried to add the input_datetime entity to a card in lovelace?
yes to both it starts perfect everyday my vacuum robot - but i shall only run once.
I guess Iām lost on what the problem isā¦
You havenāt even given any specifics on what you are trying to do or the problem you are having.
You havenāt said what the input datetime is supposed to be doing.
This thread is about the time picker card and you started out asking about that. But now it seems that the issue is about a vacuum automation issue.
ok ,sorry i will try to explain
i will use the time picker - to turn on my vacuum
and use this template
and it work fine, but when i set the timer (in this example 19:06) it starts every day at 19:06
how do I make it , so it only use the time picker time once. ? fx, reset time picker ? maybe I misunderstood the function ?
Thatās what Iāve been trying (and failing) to explain.
You donāt reset the ātime pickerā. You reset (changeā¦) the input_datetime entity.
Literally the only thing that the ātime pickerā does is change the value that is contained in the input_datetime.
Everything else is done outside of that one thing. The automation is what determines when or if the vacuum runs. It does that by looking at the trigger you set which compares the time now to the time that you set in the input_datetime.
If you only want it to run once then you will have to figure out how to do that in the automation.
My advice would be to just make the last action in the automation to turn itself off. Then you will have to turn the automation back on again at some point to get it to run again at the newly selected time, which is done bt setting the input_datetime to something else via the frontend, a service call or via the ātime pickerā.
now I get it ! thanks - that was the missing part 
Thanks again for your big help.
Can this be used with input number? Need something to adjust the time for my irrigation systemā¦
If you want to be able to āturn It on and offā, simply add the automation to your front end.
Iām using it as my alarm clock.
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Does the time resets on Hassio reboot or does it keep the last time inputed? BTW whats the ā[0:5]ā for?
The time is controlled by how you configured your Input Datetime entity. If you set an initial value for that it will reset, but this has nothing to do with Time Picker Card
the [0:5] takes the first 5 characters of the input_datetimeās value - basically stripping the seconds - for example 14:00:00 will become 14:00
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OK so added it to my irrigation setup looks good!
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Do you know whatās the equivalence of this with your time format (instead of [0:5]):
timestamp_custom('%-I:%M %p', True)
I want to display hours:minutes am/pm
Iām not using [0:5] for displaying it - Iām using it to compare the value against a time sensor in an automation - I think itās easier like that.
You can display the value of an input_datetime in whatever way is most convenient to you
Looks awesome, good work!
Hereās an idea for the future: It would be great if it supported a time range as well, basically taking a start datetime and an end datetime entity.
Can this be used to turn on a switch at a set time ?
If so, any ideas on what the config would look like ?
No. This only used to set the time values of an input_datetime.
You would have to create an input_datetime to control your switch. But then you could use this card to select the time instead of using the normal UI interface for selecting it.
hello ThaNerd
can you please post your yaml configuration?
thank you