Front End calendar plugin options

Not open source:
https://documentation.devexpress.com/WindowsForms/1971/Controls-and-Libraries/Scheduler

Partially open source:
https://fullcalendar.io/


MIT License:
https://mattlewis92.github.io/angular-calendar/#/kitchen-sink

Scheduler based on above:
https://github.com/mounthorse-slns/angular-calendar-scheduler


A very comprehensive library:
https://www.jqwidgets.com/license/

Many paid versions are available..


Viable starting points for customised versions:
https://github.com/abhishekjain12/ngx-time-scheduler
https://github.com/Zallist/TimeScheduler

-x-x-x-x-
VueJS -
scheduler and timeline components:
https://github.com/neuronetio/vue-gantt-schedule-timeline-calendar

https://github.com/lloydjatkinson/vue-frappe-gantt-demo


VueJS - building blocks for making a timeline scheduler:
https://github.com/kirillmurashov/vue-drag-resize
https://github.com/mauricius/vue-draggable-resizable