Privacy By Design
プライバシーポリシー
100%無料・ブラウザ内で安全に動作. All calculations run client-side in your browser.
1. 時間計算機
時間計算機 is an independent digital tool provided by echoarc. We believe privacy is a fundamental right. Our calculator does not require account creation and processes all computations locally.
2. Client-Side Processing
All time entries, wages, and shift logs entered into the calculator are evaluated directly on your device and are never sent to external servers.