← All Protocols
Intervals
30 / 30
20 min · 30s work / 30s rest

30 seconds work, 30 seconds rest. 20 sets by default — 20 minutes total. High-density kettlebell conditioning for swings, cleans, or snatches. Equal work-to-rest ratio keeps power output honest across all sets. This timer alternates audio cues for work and rest periods automatically.

Open Timer →

Free · No signup · Works offline as a PWA

Recommended Gear
As an Amazon Associate, Iron Timer earns from qualifying purchases at no extra cost to you.
🔔
Kettlebell
30/30 conditioning bell
Amazon →
🤍
Gym Chalk
Grip for high-rep sets
Amazon →
🧤
Lifting Straps
High-rep swing assistance
Amazon →