Timers — Our approach

The timer is not a constraint. It is a container for attention.

The problem

In an open-ended work session, attention drifts. You check email. You glance at notifications. You wonder if you should switch tasks. The absence of structure creates decision points — small moments where you have to decide whether to stay or go. Each decision point is a chance for distraction.

A timer removes decision points. When the session has a defined start and end, there is nothing to decide: you work until the timer ends. The structure is the mechanism.

What the science says

Time-boxing and the Pomodoro Technique

Cirillo (2006) developed the Pomodoro Technique as a response to his own procrastination as a university student. The core insight: knowing you have a defined interval changes your relationship with the work. A task that feels overwhelming when faced indefinitely (“I need to write this paper”) becomes manageable when framed as a 25-minute interval (“I need to write for the next 25 minutes”).

The technique has been widely adopted, and subsequent research supports its principles, even if the specific 25-minute interval is not backed by a single definitive study. The mechanism is structured alternation of focused attention and restoration.

Flow theory

Csikszentmihalyi (1990) identified flow as the optimal psychological state — complete absorption in an activity, loss of self-consciousness, distorted time perception. Flow occurs when:

1. The challenge matches your skill level
2. Goals are clear
3. Feedback is immediate
4. Distractions are absent

A timer supports conditions 2 and 4: the goal is “work until the timer ends” and external interruptions are deferred. By creating a bounded space for attention, timers make flow more likely.

Ultradian rhythms

The Basic Rest-Activity Cycle (Kleitman, 1963) describes the brain’s natural pattern of roughly 90-minute cycles of high alertness followed by lower alertness. While the Pomodoro’s 25-minute interval is shorter, both approaches share the same insight: sustained attention is not infinite. The brain requires periodic restoration.

Kaplan’s Attention Restoration Theory (Kaplan, 1995) formalises this: directed attention (the kind required for focused work) is a limited resource that depletes with use and restores with rest. Time spent in “soft fascination” — a walk, a conversation, a cup of tea — restores the capacity for directed attention.

Timeboxing for ADHD

Ramsay and Rostain (2008) specifically recommend timeboxing as a strategy for adults with ADHD. The mechanism is reduced initiation cost: when a task is timeboxed, the decision is not “can I do this whole task?” but “can I do this for [X] minutes?” The latter question is much easier to answer affirmatively.

This applies to everyone, not just people with ADHD. The initiation cost of a large task is one of the primary drivers of procrastination (Steel, 2007).

How Oter applies it

Timer lists and playlists

Oter’s timer system supports timer lists — sequences of timers that can be run in order. A study playlist might include 25-minute focus intervals, a 5-minute break, and a 10-minute review. This removes all decision points from the work session: the sequence is pre-determined, and the system advances from one timer to the next.

Pomodoro mode

The dedicated Pomodoro mode automates the classic structure: 25 minutes work, 5 minutes break, with a longer break every four cycles. Everything is pre-configured; the user just starts the first Pomodoro.

Server-authoritative timing

Oter’s timers are server-authoritative — the server tracks elapsed time and signals timer completion. This prevents the common problem of timers drifting or being silently paused. It also enables cross-device synchronisation: a timer started on desktop is visible on mobile.

Custom intervals

While Pomodoro mode uses standard intervals, users can create custom timers of any duration. This flexibility reflects the reality that different tasks require different attention intervals. A 50-minute deep work session is appropriate for some tasks; a 10-minute quick task timer for others.

Practical tips

• Use timer lists for structured work sessions. Plan your intervals before you start: 25 min focus, 5 min break, 25 min focus, 5 min break, 25 min focus, 15 min break. A full cycle.
• Match the interval to the task. Pomodoro’s 25 minutes is a default, not a rule. Try 50-minute sessions for deep work like writing or coding. Try 10-minute sessions for dreaded tasks like email.
• Don’t extend the timer. When the timer ends, stop. Even if you’re in flow. The break is part of the structure. The work will be there when you return.
• Use timers for tasks you’re avoiding. The initiation cost melts away when the question changes from “can I do this?” to “can I do this for 5 minutes?”

References

Cirillo, F. (2006). The Pomodoro Technique. Creative Commons.

Csikszentmihalyi, M. (1990). Flow: The Psychology of Optimal Experience. Harper & Row.

Kaplan, S. (1995). The restorative benefits of nature: Toward an integrative framework. Journal of Environmental Psychology, 15(3), 169–182.

Kleitman, N. (1963). Sleep and Wakefulness. University of Chicago Press.

Ramsay, J. R., & Rostain, A. L. (2008). Cognitive-Behavioral Therapy for Adult ADHD. Routledge.

Steel, P. (2007). The nature of procrastination: A meta-analytic and theoretical review. Psychological Bulletin, 133(1), 65–94.