Time Back Calculator
Estimate weekly team-hours you regain by fixing messy handoffs. Adjust the fields below with your own numbers.
Methodology & Sources
How the math works: Hours regained per week = (status meeting trim × attendees) + (fewer “where is that?” pings × minutes per ping ÷ 60) + (fewer reopened tasks × minutes per rework ÷ 60) + (avoided >24h handoff stalls × hours saved) + (onboarding mentor-time reduction × hires/month ÷ 4.33). Defaults are conservative—change the inputs to match your team.
- Status & Meetings: Team-minutes are additive. Trimming a 60→45 min status with 6 people saves 1.5 hours/week.
- Pings & Task Switching: Micro-interruptions carry restart costs; the default uses a conservative per-ping minute value you can adjust.
- Rework Loops: Rework is a major productivity drain; capturing reopened tasks × minutes gives a grounded, team-specific estimate.
- Handoff Stalls: Reducing wait states lowers lead time (see Little’s Law). This counts avoided >24h stalls × hours saved.
- Onboarding: Mentor hours saved per new hire are spread across weeks (÷ 4.33). SHRM recommends tracking time-to-productivity.
Selected Sources
- Gloria Mark et al., The Cost of Interrupted Work (CHI 2008). PDF
- Gallup Business Journal (2006): interrupted work resumed in ~23 minutes. Article
- Little’s Law (queueing theory) — relationship between WIP, throughput, and lead time. Overview
- SHRM: Measuring onboarding success (time-to-productivity). Guide
- Boehm & Basili (2001): rework & defect reduction insights. PDF