Time Flow App

Workforce management system for Japanese businesses ensuring compliance with Japanese Labor Standards Law (労働基準法).

Overview

Comprehensive workforce management system featuring real-time time tracking, leave management, push notifications, and compliance monitoring for Japanese labor law requirements.

Key Features

• Real-time Time Tracking - Clock in/out with break tracking
• Leave Management - Vacation, sick leave, overtime request workflows
• Compliance Monitoring - Japanese Labor Law (労働基準法) enforcement
• Push Notifications - Multi-device support (Chrome, Firefox, Safari)
• Role-based Access - Employee, Manager, Admin levels
• Monthly Closing - Period-end validation and report generation
• Audit Trail - Complete action logging for inspections

Japanese Labor Law Compliance

Implements legal requirements:

• Working hours: Max 8h/day, 40h/week
• Break time: 45min for 6h+, 60min for 8h+
• Overtime limits: 45h/month, 360h/year (36協定)
• Holiday requirements: 1 day/week or 4 days/4 weeks

Tech Stack

Frontend: Next.js 15.5, React 19, TypeScript, TanStack Query v5, Radix UI, Tailwind CSS

Backend: Next.js Server Actions, PostgreSQL, Prisma ORM, Web Push

Features: PWA support, Sentry monitoring

Architecture

Three-layer architecture:

1. Hooks Layer - React Query, cache management
2. Actions Layer - Business logic, validation, RBAC
3. Services Layer - Database operations

Role

Full-Stack Developer - Built complete time tracking system with compliance monitoring and push notifications.