# Build a calendar system similar to Google Calendar and Apple Calendar The same task/event can be as The same task/event can be assigned to multiple user assigned and invite to multiple users

**URL:** <https://forums.nylas.com/t/build-a-calendar-system-similar-to-google-calendar-and-apple-calendar-the-same-task-event-can-be-as-the-same-task-event-can-be-assigned-to-multiple-user-assigned-and-invite-to-multiple-users/1044>\
**Category:** General Discussion\
**Created:** [January 2, 2026, 7:13am UTC](https://forums.nylas.com/t/build-a-calendar-system-similar-to-google-calendar-and-apple-calendar-the-same-task-event-can-be-as-the-same-task-event-can-be-assigned-to-multiple-user-assigned-and-invite-to-multiple-users/1044 "2026-01-02T07:13:52Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Dhruvesh](https://avatars.discourse-cdn.com/v4/letter/d/97f17d/32.png) [@Dhruvesh](https://forums.nylas.com/u/Dhruvesh)\
**Post date:** [January 2, 2026, 7:13am UTC](https://forums.nylas.com/t/build-a-calendar-system-similar-to-google-calendar-and-apple-calendar-the-same-task-event-can-be-as-the-same-task-event-can-be-assigned-to-multiple-user-assigned-and-invite-to-multiple-users/1044/1 "2026-01-02T07:13:52Z")

</div>

I want to build a calendar system similar to **Google Calendar** and **Apple Calendar** , where:

- Each user has their **own separate calendar** after login

- Users can **create tasks/events** in their personal calendar

- The **same task/event can be assigned to multiple users**

- Users can **invite other members** to events

- The system supports **recurring events and scheduling**

- This should work **independently** , without syncing with Google or Apple calendars

I would like to know:

- Is it possible to implement this using a **third-party calendar API or service**?

- Which **third-party providers** are suitable for this kind of multi-user, backend-driven calendar system?

- How can we **manage multiple users and separate calendars** using APIs?

- What would be the **recommended architecture and approach** for implementing this?