Set a hard stop. Get interrupted with escalating urgency. Make a conscious choice to stop or keep going.
Hyperfocus is the ADHD superpower that's also a trap. You sit down to "quickly check" something and surface 4 hours later having missed dinner, skipped a meeting, and ignored 12 texts. Gentle reminders don't work — your brain filters them out. The Exit Ramp escalates: first a nudge, then a warning, then a full-screen interrupt that demands a conscious choice. You can keep going, but you have to actively decide to — no more "I didn't notice the time."
Best Visual Timers for ADHD