Guru Pūrṇimā · teachers · Āṣāḍha's full Moon
What is Guru Pūrṇimā?
Every lunar month has a Pūrṇimā, the full-moon tithi. The Pūrṇimā in Āṣāḍha is called Guru Pūrṇimā, an annual occasion for honoring teachers and teaching lineages. Hindu, Buddhist, and Jain traditions share this calendar date while remembering different teachers, histories, and forms of learning.
A Sanskrit word for a teacher
A guru is a teacher or respected guide.
In everyday educational language, guru can mean a teacher or an expert guide. In religious settings, the word can carry a deeper meaning: a spiritual teacher who transmits a teaching tradition and guides a student's practice. The relationship and its customs differ among traditions.
Teaching remains a living practice. A teacher may help someone understand language, music, mathematics, astronomy, philosophy, a craft, or a spiritual path.
The date is contained in the name
Guru Pūrṇimā is Āṣāḍha's Pūrṇimā.
One of the twelve Sanskrit lunar months; Guru Pūrṇimā belongs to this month.
The bright, waxing half of the lunar month.
The Āṣāḍha full-moon occasion for expressing gratitude to teachers.
Put together, Āṣāḍha Śukla Pūrṇimā means the full-moon tithi of the bright fortnight in the lunar month Āṣāḍha.
One date · several teaching traditions
Different traditions honor different teachers on Guru Pūrṇimā.
Many Hindu communities call the day Vyāsa Pūrṇimā and honor teachers or teaching lineages, often with special attention to Vyāsa. Jain communities also honor teachers and transmission on Guru Pūrṇimā. The shared Āṣāḍha full-moon date also carries the distinct Buddhist observance Dhamma Cakka Day, commemorating the Buddha's first teaching.
These connections belong beside one another as distinct traditions. A person may offer gratitude, study, attend a teaching, undertake pūjā or another practice, or observe the day in a way appropriate to their own tradition.
Official references: Maharashtra Tourism, Guru Pūrṇimā · Ministry of Culture, Āṣāḍha Pūrṇimā and Dhamma Chakra Day
Why the date may vary by location
Guru Pūrṇimā appears when Āṣāḍha Pūrṇimā is underway at local sunrise.
To connect this occasion with a local date, the report asks two questions: Is Pūrṇimā underway at sūryodaya, local sunrise? Does that Pūrṇimā fall in Āṣāḍha under the lunar-month method explained on this site? When both answers are yes, the report identifies Guru Pūrṇimā.
When Guru Pūrṇimā is identified, the report uses that familiar name rather than also repeating Pūrṇimā as a separate item. Regional and traditional calendars may use additional ways of assigning the date or another lunar-month system, so a nearby date may appear elsewhere.
A vṛddhi tithi can be present at two consecutive sunrises. This site's current rule assigns sunrise-based Pūrṇimā observances to the first of those sunrises, preventing the same observance from appearing twice.
Calendar references: The Indian Calendar, general sunrise rule