When you create a task, you can:
- Add details.
- Set a date and time.
- Make it repeat on certain days.
- Add subtasks.
Important:
- Across all your lists, you can create up to 100,000 tasks.
- For any list, you can create up to 20,000 uncompleted tasks.
Create a task
Add a task with the Google Tasks app- Open the Google Tasks app . 
- Tap Add a new task . 
- Enter a task.
- Optional: To add a date and time or repeat a task, tap Add date/time Done. 
- Tap Save.
- On your iPhone or iPad, open the Gmail app . 
- Open the email you want to save as a task.
- At the top right, tap More options Add to Tasks. 
You can also edit, delete, and complete tasks from Google Calendar. Learn how to create and view tasks in Calendar apps.
- Open the Google Calendar app . 
- Choose an option:
    - Tap an empty slot on your calendar Task. 
- Tap Add Task . 
 
- Tap an empty slot on your calendar 
- Enter the task name and details.
- Tap Save.
Tips:
- Any tasks with dates you create in the Tasks app appear on Google Calendar.
- A list of all uncompleted tasks from the last 365 days is available in your current day on Google Calendar.
- When you switch categories from “Task” to “Event” in the middle of the creation process, the Calendar app retains as much of the data as possible.
You can create a personal task from Google Chat.
- Open the Google Chat app . 
- Touch and hold the chat message you want to add as a task.
- Tap Add to Tasks.
- Finish your draft task in the Tasks app.
Tips:
- If you add a date to your task in Google Tasks, the task also appears on Google Calendar.
- If you edit the task in Google Tasks, the Chat message remains unchanged.
- To navigate back to your Chat message from Google Tasks, below the task, click the chat’s name.
Change a task
You can:
- Change the task name
- Add details
- Set a due date
- Add subtasks
- Open the Google Tasks app . 
- Tap the task you want to edit.
- Change the task info.
- Tap Back . 
Tips:
- If you want to change the date and time of the next repeating task in a series, tap the date.
- To edit the date and time for all tasks, at the bottom, tap the repetition info.
Mark a task as complete
- Open the Google Tasks app . 
- To the left of a task, tap Complete . 
Delete a task
- Open the Google Tasks app . 
- Tap the task you want to delete Delete . 
Delete a task in a repeating series
- Open the Google Calendar app . 
- Tap the task you want to delete.
- Tap Delete This task. 
Learn about task notifications
- If you add a date and time to your task, you get notifications at the scheduled date and time.
- Tasks with a date also appear in the Calendar app.
- For tasks without a time, notifications appear at 9 AM.
Learn about repeating tasks
- To repeat a task, select the date and time Repeat . 
- Tasks with subtasks can't repeat.
- In Calendar, a certain number of upcoming instances of a repeating task will appear on the calendar grid, and as time passes, new ones will be added automatically.