Is it possible to set the format of the time of the notification?

[ComptonAlvaro]

When a notification is published, in the upper right is shown the time with hour and minute.

Is there some way to set the format of the time? Add seconds or perhaps showing the date too, month and day.

Thanks.

[thudugala]

@ComptonAlvaro can you add a couple of screenshots to show what you are trying to show?