How I Use Clocks Differently for Deep Work vs. Light Work

I track time differently depending on the kind of work I'm doing. Here's how I've broken it down and what tools I use for each.

Deep Work: Pomodoro + No Clocks

For focused writing, coding, or analysis, I hide all clocks. I use a 25-minute timer (standard Pomodoro), set it, then ignore time completely until it goes off.

The irony of time management: for the work that matters most, you want to stop thinking about time entirely during the session. The clock watching is a form of procrastination — checking how much time is left instead of doing the work.

Tool: Any timer. I use Pomofocus — browser-based, no install, starts immediately.

Light Work: Ambient Clocks

For email, Slack, browsing, admin tasks — I keep time visible. This is the opposite posture: ambient awareness of time helps me not over-invest in things that don't deserve it.

My new tab page shows my local time plus world clocks for the time zones I work across. Weather & Clock Dashboard handles this — it's always visible when I open a new tab.

When I see it's 4:45pm, that reminder naturally creates a "wrap up soon" posture. When I see it's 8am London time, I'm reminded it's a good time to message UK colleagues.

Meetings: World Clock First

Before any meeting scheduled across time zones:

1. Check my world clock display (new tab → 2-second glance)
2. Confirm the time I think it is for the other party
3. Only then look at my calendar

This sequence has caught several instances where I'd miscalculated a time difference, especially around DST changes when the US and EU switch on different dates.

End of Day: The Shutdown Ritual

This is from Cal Newport's Deep Work: define a specific signal that ends your workday. Mine is closing the specific browser container where all my work tools live (Firefox Multi-Account Containers).

When that container closes, work stops. I don't reopen it until the next day. The world clocks in my new tab become irrelevant — my work collaborators' time zones aren't my concern anymore.

The Underlying Pattern

Looking at how I use time tools:

• Deep work: remove time awareness
• Light work: make time awareness ambient
• Cross-timezone coordination: make other people's time visible
• End of day: use a ritual to delineate the boundary

Each uses a different relationship with clocks. The mistake most people make is applying one approach uniformly — either obsessing over time all day or ignoring it completely.