It is basically used to view the users realname and activity period. There are two model They are:
-UserDetail
-ActivityDetail
Backened uses manually adding data using shell or from admin site by superuser . Timezone info any user can be obtained from client side using (https://pypi.org/project/django-tz-detect/) django-tz-detect 0.3.0
You can install the required package from requirements.txt package install:
Django==3.0.7
djangorestframework==3.11.0