Lịch Bách Việt - Lịch Vạn Niên

Bach Viet Calendar is a compact perpetual calendar that fits on your phone: check the lunar and solar calendars, find auspicious hours, choose lucky days, and never forget anniversaries or holidays.

All calculations run directly on your device, no internet required, no ads, and no data collection.

VIEW DATE
• Lunar and solar dates, day of the week, and lunar cycle
• Four pillars of the Chinese zodiac: Year, Month, Day, and Hour
• Solar terms and daily cycles
• Things to do and things to avoid
• Twelve hours of the day, clearly distinguishing between auspicious and inauspicious days
• Swipe horizontally to view each day

VIEW MONTH
• Twelve-month grid to view the entire year
• Pre-colored auspicious and inauspicious days
• Colored dots to mark days with events
• Tap a day box to open details, hold to add events quickly

LUNAR CALENDAR REMINDERS
• Anniversaries, birthdays, and holidays are set according to the lunar calendar; the app automatically calculates the solar calendar date for subsequent years

• Twenty-two pre-set traditional holidays: Lunar New Year, Ancestor Commemoration Day, Vu Lan Festival, Mid-Autumn Festival, Kitchen God Festival…
• Reminders for the 15th and 1st of each month
• Reminders for upcoming auspicious days
• Choose reminders five minutes, one hour, or three days in advance

THIREFEEN LOOKUP TOOLS
• Check auspicious dates: weddings, moving into a new house, groundbreaking ceremonies, business openings, contract signings, travel
• Choose auspicious dates for first-footing (first visitor of the year)
• Calculate the Kim Lau age before marriage
• Calculate Double Funeral (Trùng Tang)
• Three-Day Auspicious Days
• Convert lunar to solar dates and vice versa
• Look up names according to the Five Elements

• View I Ching divination

HOME SCREEN WIDGET
• Six types of widgets: today's lunar calendar, daily details, lunar month progress, auspicious hours, day quality, upcoming events
• Automatically change to the correct time of the transition between the Heavenly Stems and Earthly Branches
• Added a notification bar pinning the lunar date, scroll down to see it

INTERFACE

• Sixteen hand-drawn background images: Sunrise, Sunset, Landscape, Moonlight Night, Green Bamboo, Terraced Fields, Peach Blossoms, Apricot Blossoms…
• Or use your own photos as backgrounds

• Bright, dark, or according to the system
• Adjust font size for easy reading

PEACE OF MIND DATA
• Runs completely offline, no login required
• No ads, no tracking
• Backs up events to a file for porting to other devices, compatible with the iPhone version

The lunar calendar in the app is based on Vietnam's time zone, so the first day of the month, leap months, and Tet (Vietnamese New Year) always match the official calendar, no matter where you are. The date and time displayed will still follow your local clock.

Bach Viet Calendar is also available on iPhone, iPad, and Mac.