You need to buy a digital weekly timer.
There are none for less than 10 €.
You can do 3 different programs per day, each day of the week.
Minimum unit of a program: 1 minute
This is the programming sequence of the digital weekly prog, for getting started:
ON
CAR OFF 
CAR
It should be understood that if you want to postpone an automatic start, according to the times entered previously, you must go to OFF before setting AUTO.
(If you switch to ON before AUTO, the time program is executed immediately, and when it is finished resets to automatic)
If you only have an off-peak time slot between 0:30 a.m. and in the morning, you program, for every day of the week, a one-minute program around 1 a.m.
When this program runs, it will simulate a one-minute continuous push on the Play button.
(This must be sufficient lol, but not detrimental to the machine)
So to schedule a night start:
1- Set the timer to AUTO
2- Switch on the LV market
3- Program the washing style on the machine
4- Leave the machine in this state, waiting for a delayed press on the Play button.
If the next day, you don't want to wash for the night, you will have to turn off (or not turn on) your dishwasher. So when the weekly prog pushes the Play button, it will have no effect.
It goes without saying that one day, if you program a wash for the night, and you immediately go on vacation when you leave your home, your dishwasher will run the first night and end, but may restart every other night. following, identically ...
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You must connect inside your dishwasher to the 2 contacts of the Play button, a wire which will come out of the machine (taken from the button, the wires or the control board).
These 2 wires will go to the digital weekly time programmer, on the 2 relay terminals, which will simulate a push of the Play button at the right time.
You can make an interface at the exit of the dishwasher in order to separate the link in case of displacement (Male and Female connector)
Modification of the digital weekly timer:
Inside there is a relay that switches a current of 16A.
You must remove (remove) the 230V connections on the relay output contacts and put only the 2 wires coming out of the dishwasher (contacts open)
To see bigger
2 opportunities:
1- Remove all 230V outputs on the relay contacts and on the female socket.
Use the programmer output socket to connect the 2 poles to the 2 rest contacts of the relay. And use a simple electrical plug to connect the 2 Play wires of the dishwasher.
If you inadvertently plug a mixer into this socket, nothing will happen, since there is no current source (possibly looping).
But your programmer will use one location on one electrical connection, and the dishwasher another.
2- Remove the 230V links with the rest contacts of this relay. Connect the 2 wires (Play) coming from the dishwasher directly to it.
Use the 230V female socket with free output to put the 230V + Earth coming directly from the male socket of the programmer. In fact, it becomes a simple extension to connect your dishwasher.
You save a take. This is best to avoid the clutter of an electrical strip.
* The second modification seems preferable.
It should be understood that it will be necessary to transplant a small wire on the continuity of the "neutral" between the input and output 230 V sockets, to supply the electronic box via the input resistance.
