Planning

When a block ends

Complete, reschedule or extend a block the moment it ends, or act on it from the menu bar while it runs.

Answer the alert

When a block you planned in Chunk ends, an alert fills the screen, so you decide what happens to it before you move on. If another block starts straight after, the alert names both.

  1. Tick Mark complete if you finished it.
  2. Click Reschedule… if it needs another time.
  3. Click +15m, +30m or +1h beside More time to keep going.
  4. If the alert names the next block, click Switch to next to close it and get on with that block. Nothing moves.
  5. Otherwise, click Close or press Esc.

Give it more time

  1. Click +15m, +30m or +1h beside More time. The block's end moves later.
  2. If the extra time runs into your next block, choose Push what follows to move that block, and any right behind it, later. Or move the blocks in the way to their next free slots.
  3. To put everything back, click Undo before the alert closes.
The extra time runs into the next block.

Calendar events and locked blocks stay where they are, so the extra time can overlap them.

Reschedule it

  1. Click Reschedule….
  2. Choose Next free slot to move the block to the first gap long enough for it, or Tomorrow, same time.
  3. To pick a day and time yourself, choose Choose date and time….
  4. To take the block off your calendar and back to your task list, choose Remove from schedule.

Tomorrow, same time is greyed out when something else is already there, or when tomorrow is after the task's deadline.

Act on a block before it ends

While a block you planned in Chunk runs, right-click its countdown in the menu bar to finish, extend or move it without waiting for the alert.

  1. Choose Complete to tick it off now.
  2. Choose Switch to next to end it now and start the next block early. Then choose Bring next block forward to move just that block, or Bring rest of day forward to move the rest of the day's blocks with it.
  3. Choose Complete and switch to do the same and tick this block off.
  4. Choose Keep going, then 15 more minutes, 30 more minutes or 1 more hour. If that runs into the next block, choose Push back what follows or Move the next block to a free slot.
  5. Choose Reschedule… for the alert's rescheduling options.
  6. To put back your last switch or extra time, right-click again and choose Undo.

Complete has no Undo.

The alert and its actions come with the Fullscreen style. A Banner is a standard macOS notification with no actions. Choose one under Notification style in Settings → Notifications, as Notifications explains.

With banners, complete or move a block in Chunk itself, or from the menu bar while it runs.

FAQ

Why did the alert close on its own?

If you don't click anything, it closes after about 15 seconds and the block stays as it was.

Why does Next free slot find nothing?

It looks only within your day hours, set in Settings → Date & Time → Day hours, over today and the next six days, and before any deadline the task has. If there's no gap long enough, use Choose date and time….

Why are there no actions?

A calendar event has none, in the alert or the menu bar. Nor does a repeating block, unless you've changed that day's block. With Include calendar events on, an event that starts during your block takes over the countdown, and the menu has no actions until the event ends.

Why do I get one alert when one block runs into the next?

With both Task start notifications and Task complete notifications on, a block that ends as the next starts gets one alert for the handover, naming both blocks.

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Updated 9 November 2026