# Lock a planned block in place

> Keep a task at the time Prior chose, or drag it somewhere else, so that the plan works around it and never moves it again.

Source: https://priortasks.com/docs/planning/lock-a-block/
Last updated: 2026-11-05

A planned block is only a suggestion until you lock it. Locking saves the date and time on the task itself, and from then on Prior plans everything else around it.

> [!pro] Blocks need Pro
> Prior places blocks only with Pro, Team or Enterprise. Times you locked stay on your tasks on every plan and keep showing on Today and in the calendar. See [Plan your day with automatic time blocking](https://priortasks.com/docs/planning/time-blocking/).

## Lock a block

1. Click a block in the [calendar](https://priortasks.com/docs/planning/calendar/), or in **Your plan** on Today.
2. Press **Keep this time**.

The block turns solid with a lock and the label **Locked by you**. If the task had no duration, the block's length becomes its duration.

## Drag a block

In the Day and Week views, drag a block to another time or day. Dropping it locks the task there, and a toast says **Block locked at this time** with an **Undo** button. Drag the bottom edge to resize it: the new length becomes the task's duration. If part of the task's checklist is already done, Prior scales the duration up so that the block keeps the length you drew.

Only a block that is not split can be dragged. Blocks of a task cut into several parts stay put.

## What else the block dialog does

- **Mark done** completes the task.
- **Open task** opens it.
- **Not today** plans the task from the next working day on.
- **Planning settings** opens your [planning settings](https://priortasks.com/docs/planning/planning-settings/).

The dialog also tells you how the length was found: **Your estimate**, **Estimated by Prior AI** or **Estimated from the title**. It shows **Deep work** or **Quick work** and, for a split task, **Part 1 of 3**.

## Let Prior choose the time again

Open a locked block and press **Let Prior choose the time**. The time is removed from the task. The day stays as a preference, so Prior plans the task on that day when it can.

## Good to know

- A locked time is real task data: it syncs to your other devices.
- Prior never moves a block in progress, and it never moves a locked block that is still ahead.
- If the time passes and the task is not done, Prior plans the task again from the present.
- A task with a date but no time is not locked: Prior plans it that day and may choose any hour.