Sổ Lịch — Lunar Calendar

Sổ Lịch is a traditional Vietnamese Lunar-Solar Calendar thoughtfully crafted with a minimalist Zen philosophy, delivering a calm, clutter-free, and privacy-first experience. Free from intrusive advertisements and visual clutter, Sổ Lịch brings you back to what matters most: accurate lunar dates, honoring ancestors on family memorial days, punctual reminders, and a peaceful headspace every time you check your calendar. CORE HIGHLIGHTS: 1. ACCURATE & TIMELESS LUNAR-SOLAR CALENDAR • High-precision astronomical calculations tailored for Vietnam time. • Full Heavenly Stems and Earthly Branches (Can-Chi), Solar Terms (Tiết khí), and daily cosmic energy indicators. • Intuitive Auspicious & Inauspicious hours (Giờ Hoàng đạo / Hắc đạo) to guide your daily rituals and important life events. 2. MEMORIAL DAYS & RECURRING LUNAR EVENTS • Effortless Lunar Repetition: Set up death anniversaries (Ngày…