ADHD timeboxing on Mac with Google Calendar

Timeboxing fails when the list and the calendar live in different apps. Focuh puts Today next to Google Calendar, and on Mac the blocker holds for the block.

What Is Timeboxing and Why Does It Work?

Timeboxing is the practice of assigning a fixed time period to each task before you begin. Instead of working on something "until it's done," you work on it for 30 minutes, then move on. If it needs more time, you schedule another timebox.

It works because it solves three problems at once: it makes tasks finite (so they're less overwhelming to start), it prevents perfectionism (the timebox ends whether you're done or not), and it creates built-in transitions (so you don't hyperfocus on one thing all day while other tasks pile up). For an ADHD brain that struggles to feel time passing, a timebox is the external clock the internal one never provides.

The Problem: The List and the Calendar in Different Apps

Most people who try timeboxing hit the same wall: maintaining two systems. The todo list lives in one app and the calendar in another, and keeping them in sync requires constant manual effort.

You add a task to your list. Then you create a calendar event for the same task. If the task takes longer than expected, you update the calendar. If a meeting moves, you reorganize your task blocks. If something changes (and something always changes), you update both systems.

This double-entry problem kills timeboxing habits, and it kills them fastest for people with ADHD, because every extra maintenance step is a step that gets skipped. The technique works. The tooling fails.

How Calendar Sync Solves Double Entry

When your todo list syncs with Google Calendar, your tasks and your calendar become one system. Focuh puts Today directly next to your Google Calendar, so your scheduled tasks appear alongside your meetings and appointments.

This means:

Your day is visible in one place. Instead of cross-referencing a task list and a calendar, you see everything together. The 10 AM meeting, the 11 AM block on the report, the afternoon's coding tasks, all on the same timeline.

Scheduling tasks means scheduling time. When you put a task on a time slot, it appears on your calendar. There's no second step. The task is the calendar event.

Calendar events inform your planning. When you can see your meetings and your tasks side by side, you make better decisions about what to work on. A 30-minute gap between meetings is a 30-minute timebox, not "free time" that evaporates.

Planning Your Day with Timeboxing

An effective timeboxing workflow:

Morning planning (5-10 minutes). Check your calendar for meetings and fixed commitments. Then assign your tasks to specific time slots around those commitments. Be realistic and leave buffer time between blocks.

Execute in focused blocks. When a timebox arrives, start a session for that task. The timer runs, distractions are blocked, and you work on the one thing you assigned to this block.

Adjust as needed. Plans change. A meeting runs long. A task takes more time than expected. Move tasks to different slots; moving a task updates your calendar with it.

End-of-day review. Look at what you completed versus what you planned. Unfinished tasks get rescheduled to tomorrow. This takes two minutes and gives you a clean start the next morning.

Why Timeboxing Needs Blocking

Timeboxing tells you what to work on and when. Blocking makes sure you actually work on it. The combination is significantly more effective than either technique alone.

Without blocking, a timebox is just a suggestion. You might intend to work on the report from 10-11 AM, but if Twitter is one click away, the timebox becomes 30 minutes of work and 30 minutes of scrolling.

With blocking, the timebox is protected. On Mac, Focuh blocks distracting sites and apps system-wide during the session, not just in one browser. During your 10-11 AM report block, the time you allocated to the task is actually spent on the task.

Tips for Effective Timeboxing

Start with 30-minute blocks. They're short enough to feel manageable and long enough to make meaningful progress. Adjust the length based on the task type; creative work often needs longer blocks.

Schedule your most important work first. Your best focus hours shouldn't go to email. Put your hardest, most important task in your peak energy slot and protect it with blocking.

Include transition time. Don't schedule back-to-back timeboxes with no breaks. You need 5-10 minutes between blocks to close out the previous task, take a breath, and set up for the next one.

Timebox everything, including breaks. "Take a break" without a timer often becomes an hour on social media. A 10-minute break timebox keeps you on schedule.

Don't timebox in advance more than a day out. Your priorities will shift. Plan tomorrow's timeboxes at the end of today, not a week in advance.

Timeboxing is the technique. Calendar sync is the infrastructure that makes it sustainable. Focuh gives you both on Mac and web, plus the blocker that holds the block. Free. Early beta. No subscription.