Lunar Calendar

🗓️ Lunar Calendar — Vietnamese Lunar-Solar Calendar

The all-in-one Vietnamese lunar-solar calendar designed for everyday use. View both the Gregorian and traditional lunar date side by side, track Vietnamese holidays and festivals, set personal reminders, and place a beautiful home-screen widget — all in one app.

━━━━━━━━━━━━━━━━━━━━━━━━━━

📅 DUAL CALENDAR VIEW
See both the solar (Gregorian) and lunar (âm lịch) date on every single day. Never miss the lunar date for an important occasion again. Each day displays the corresponding lunar day, lunar month, and Can-Chi zodiac year.

🎑 HOLIDAYS & FESTIVALS
All major Vietnamese public holidays and traditional lunar festivals are highlighted automatically — Tết Nguyên Đán, Rằm tháng Giêng, Giỗ Tổ Hùng Vương, 30/4, 1/5, Tết Trung Thu, and more. No manual setup required.

🔔 SMART REMINDERS
Set reminders tied to any date on the calendar. Choose a specific time or mark an event as All Day. Notifications fire at exactly the right time, even after device reboot. Reminders are sorted by time for easy reading.

📱 HOME SCREEN WIDGET
Add a lightweight widget to your home screen showing today's solar date, lunar date, day of week, and Can-Chi zodiac year — updated automatically at midnight. Available in Light and Dark variants.

🌙 DARK MODE
Seamlessly switch between light and dark themes. Your preference is saved and restored on every app launch.

🌐 BILINGUAL: VIETNAMESE & ENGLISH
Full support for both Vietnamese and English — switch languages instantly without restarting the app.

⚡ FAST & LIGHTWEIGHT
Calendar data is pre-generated locally on your device — no internet connection required to view dates, holidays, or reminders. Smooth month-to-month swiping with instant response.

━━━━━━━━━━━━━━━━━━━━━━━━━━

✨ FEATURES AT A GLANCE

• Monthly calendar grid with Gregorian + lunar date on every cell
• Vietnamese public holidays and lunar festivals highlighted
• Can-Chi (Heavenly Stems & Earthly Branches) zodiac year display
• Personal reminders with exact-time notifications
• All-day event support
• Home screen widget (Light & Dark)
• Dark mode with persistent setting
• Vietnamese and English language support
• Offline — no internet required for core features
• Clean, modern Material 3 design

━━━━━━━━━━━━━━━━━━━━━━━━━━

📋 PERMISSIONS EXPLAINED

• Notifications — required to deliver reminder alerts at the scheduled time
• Exact Alarm — used exclusively to fire calendar reminders at the precise minute set by the user
• Boot Completed — reschedules your reminders automatically after device restarts

━━━━━━━━━━━━━━━━━━━━━━━━━━

Lunar Calendar is built for Vietnamese users who rely on the lunar calendar for daily life, ancestral commemorations, auspicious date selection, and traditional holiday planning.