You can already do it with Traccar Client for Android. Create shortcuts first, and then use any scheduling app (e.g. Llama).
Thank you for fast answer! Anton, i thought to do it in traccar client app because for your solution necessary to download another application and no one user want to do it.
I see. I agree that it's more complicated than having it in the same app.
With AlarmManager you can set up specific time when you want your app to be woken up.
I want to add to Android Client new field something like traccar working time - from : 8.00 till : 20.00. But i can't realize this. i try to do it with alarmmanager, but i don't understand it well. Can you help me with some articles or better examples how to do it?