Super Productivity can connect a realistic daily plan with evidence about how time was spent. Use estimates as planning aids, then compare them with recorded effort to adjust future commitments rather than simply filling every available hour.
Choose a realistic set of tasks for today and estimate how long they will take before starting the timer. Record interruptions so your plan can be adjusted instead of simply adding more work. Configure optional synchronization and review the desktop-versus-web differences before relying on one device.