This clock app makes it easy for people with dementia or Alzheimer's to keep track of time. It can help to avoid phone calls in the middle of the night! You can set up periods of the day such as Morning, Afternoon, Tea time etc. For each period you can say when it starts and finishes, and which days it occurs.
Although it comes set up with reasonable default values it is highly configurable.
The display can give just the day of the week and the period of the day. There is also the option of displaying the actual time and/or date if required.
You can adjust the sizes of the various display elements to suit your needs and also select a contrasting colour scheme for some periods, e.g. dark colours during the night.
Full help is built into the app. You can save your settings to a file for backup or transfer to another device.
The idea is based on the old Unix fuzzy clock and research done by the Bath Institute of Medical Engineers.