Why is a leap month needed in the lunisolar calendar?
Because of the gap of about 11 days between the lunar year, which has only a little over 354 days, and the solar year, which is longer than 365 days, a leap month appears in the lunar calendar roughly every few years. This helps the calendar stay in step with the cycle of hot and cold weather.
Lunar calendar 2027: year of Đinh Mùi, Tết on Saturday 6 February 2027, no leap month. Key dates, solar terms, and how to look up dates and convert Can Chi.
Lunar to solar conversion uses no fixed addition table. It relies on the new moon point, major solar terms and legal time zones, so it differs year by year.
Giving birth in Đinh Mùi 2027: the 12 lunar months with solar dates, Bát Tự months by solar term, the Horse and Monkey year boundaries, and good-month views.
The full-month ceremony falls one lunar month after birth; by custom boys hold it one day earlier, girls two. How to count it, an example, and offerings.
Two calendars can give different lunar dates for the same solar day because they use different legal time zones, such as Vietnam at UTC+7 and China at UTC+8.
What is Vietnamese astrology (tu vi), how a chart is cast, and core concepts such as the 12 palaces, major stars, Four Transformations, nap am and Bát Tự.
Comparing Lunar New Year of the Kinh, Chôl Chnăm Thmay of the Khmer, and ethnic groups with their own calendars: timing, offerings, rituals, and names.
Thu Phân, the 16th of the 24 solar terms, begins on 22 to 24 September as the Sun enters the Thọ Tinh station. Its calendar roots and customs, explained.
Personal Year Number 6 in numerology centers on family, love and responsibility, a cycle for nurturing relationships and balancing giving with receiving.
Xuân Phân, the fourth of the 24 solar terms, starts on 20 or 21 March in Vietnam time. Exact dates to 2030, its three pentads and the customs around it.
Hexagram 44 Thiên Phong Cấu, one newly born yin line beneath five yang lines, speaks of sudden encounters and how to spot a new shoot while it is still small.
Burning votive paper to see off ancestors after Tet usually falls between the 3rd and 10th of the first lunar month, most often the 3rd. What to prepare.
What replacing an incense bowl involves, when it should be renewed, who in the family may do it, and why the customs vary across regions and households.
155 types of Vietnamese offering rites in 15 groups, from ancestor and death-anniversary rites, Tết and the festivals of the year to funerals, communal houses and temples, and the rites of ethnic communities; each with alternative names, timing, recipients, a short description, classification axes (cycle, social setting, beings worshipped, tradition, ethnic group, cultural region), a structured date and sourced passages on its customs. It is the key table for Nhật Nguyệt's datasets on offering prayers and rite customs.
Every solar day across ten years, showing whether it falls on Tam Nuong, Nguyet Ky, Sat Chu or Tho Tu, with the lunar date and stem-branch for checking.