Solar to lunar calendar & weekday
Convert Gregorian dates to Vietnamese lunar calendar, weekday, and stem-branch (Can Chi)—free, runs in your browser.
Convert Gregorian to lunar calendar for rituals, holidays, or almanac checks. Pick a solar date and see the weekday plus lunar day/month/year instantly.
All computation runs in your browser—no personal data is sent to a server.
Gregorian
2026-09-23
Weekday
Wednesday
Lunar
Lunar day 13, month 8, year 2026
Day stem-branch
Canh Tý
Month stem-branch
Đinh Dậu
Year stem-branch
Bính Ngọ
FAQ
Does this match official Vietnamese almanacs?
It uses standard lunisolar rules. Printed calendars may differ near midnight on boundary days—double-check for critical events.
Do you store the date I pick?
No. Everything runs locally in your browser.