Kartik Purnima
Also called Dev Diwali, Tripurari Purnima, Karthigai Deepam, Guru Nanak Jayanti
When
Tuesday, 24 November 2026 in 89 days
New Delhi · change location
at sunrise. This observance is governed by pradosha, not by the sunrise tithi — which is why the tithi named here is often not the one the festival is named for.
See the complete panchang for that day →
Governed by
Why this date?
The Purnima of Kartika. The lamp-lighting is a PRADOSHA-period observance. The Tamil Karthigai Deepam shares the month but is set by the Krittika nakshatra rather than by the Purnima alone, so the two do not always fall on the same civil day.
- Computed by the panchanga engine for your location
- Follows a written selection rule, not a copied list
- The governing period is stated, and the rule is applied to it
- The written guide has not yet been reviewed by a named scholar
- Karthigai Deepam and Kartik Purnima do not always coincide.
Kartik Purnima is set by the full moon; Karthigai Deepam by the Krittika nakshatra in the Tamil month of Karthigai.
Dates come from the calculation engine and are independent of the written guide. How we calculate →
Dates in the coming years
- Tuesday, 24 November 2026 in 89 days
- Sunday, 14 November 2027 in 444 days
- Thursday, 2 November 2028 in 798 days
- Wednesday, 21 November 2029 in 1182 days
- Sunday, 10 November 2030 in 1536 days
Published to 2030. Later years appear as the dataset is extended and validated.
What In short
The full moon of Kartika: river bathing at dawn, lamps at dusk, and — on the same date — Guru Nanak's birth anniversary for Sikhs and the Karthigai Deepam lamp festival in Tamil Nadu.
- Deity: Shiva as Tripurari; Vishnu; Kartikeya
Why The reason behind it
Shiva's destruction of the three cities of Tripura is the northern reading; the Varanasi ghats are lit as Dev Diwali, the gods' own Diwali. In Tamil Nadu the day's lamp is read against the Arunachala hill-beacon and the Kartikeya story.
Traditional basis
Shiva Purana — The Tripura-dahana narrative behind Tripurari Purnima.
Skanda Purana — The Kartika-masa lamp observance and the merit of the Kartika snana.
How At home, step by step
- Bathe at dawn in a river or tank if reachable — Kartika snana is the month's central practice and this is its last day.
- At the pradosha hour, light lamps: at the threshold, at the tulsi, and on the terrace or at the water's edge.
- Offer a lamp on water where the local custom keeps it.
- Where the household keeps Kartika deepa-dana, give a lamp and oil away.
What you'll need
- Clay lamps and oil
- Tulsi plant, if the household keeps one
- Flowers, incense
Fasting and breaking the fast
Some keep a fast through the day, broken after the evening lamps.
Fasting guidance here describes traditional practice. It is not medical advice — if you are pregnant, diabetic, on medication or unwell, ask a doctor about your own circumstances.
Personal In your region
- North India yours
Dev Diwali at the Varanasi ghats — the largest lamp observance of the year there. - Tamil Nadu (Tamil)
Karthigai Deepam: rows of agal vilakku at every threshold and the Arunachala beacon at Tiruvannamalai. Set by Krittika nakshatra, so it may not coincide with the Purnima. - Punjab (Punjabi)
Guru Nanak Gurpurab: the Prakash Utsav, with akhand path and nagar kirtan. - Odisha (Odia)
Boita Bandana — small boats floated in memory of the old maritime trade.
For children
Tonight the whole month of lamps finishes with the biggest lamps of all, on the last full moon. In Tamil Nadu they light a huge fire on top of a mountain.
Common questions
- Is Karthigai Deepam the same day as Kartik Purnima?
- Often, but not always. Kartik Purnima is set by the full moon; Karthigai Deepam is set by the Krittika nakshatra in the Tamil month of Karthigai. When they diverge, this site shows the one your region setting selects.
Not the same day
These fall nearby or share the tithi, and are often confused with this observance. They are separate, and this site dates them separately.
- Karthigai Deepam
- Guru Nanak Jayanti
This guide has not yet been reviewed by a named scholar or practising priest. The dates and times on this page come from the calculation engine and are independent of it; the explanatory text is editorial and may not reflect your family's practice. Tell us if something is wrong.