Deep work is the focused, undistracted effort that produces your best thinking — writing, coding, designing, problem solving. It cannot be rushed in five-minute gaps between notifications. It needs a protected block long enough to load the problem fully into your mind and stay there. A deep work timer guards that block: you decide the length, press start, and treat the session as non-negotiable until the time is up.

Flowglass keeps the interface quiet so nothing competes with the work. The draining hourglass gives you an ambient sense of time without a distracting clock. There is no feed and no noise — just an XP bar that fills when the block is done, and you can switch off animations entirely with Reduce motion.

There is no single correct length. The popular 52/17 rhythm — 52 minutes on, 17 off — is one way to balance intensity and recovery, and it is built into Flowglass. Others prefer 50/10 or a single 90-minute block. With the Custom technique you can set any work and break length and save it as a preset.

Whatever you choose, the break is part of the method, not a reward to skip. A genuine pause — away from screens — is what lets the next deep block be just as productive.

Every session you finish is logged to a skill, so your deep work hours accumulate into a weekly picture — and into XP and skill levels. Protecting even one or two deep blocks a day adds up. Start a deep session above, and if you are new to structured focus, read what the Pomodoro Technique is first.