Tripurotsava dates (popularly Dev Diwali)
When the Tripurotsava, popularly Dev Diwali or Dev Deepawali, falls in 2026, 2027 and 2028: the Kārtika Pūrṇimā at dusk, with its pradoṣa time, for Varanasi, Delhi and cities abroad.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Delhi, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Varanasi, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Mumbai, the Pūrṇimā holds 94% of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Kolkata, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Chennai, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Bengaluru, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Hyderabad, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Ahmedabad, the Pūrṇimā holds 96% of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Pune, the Pūrṇimā holds 96% of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Jaipur, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Lucknow, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Monday, 23 November 2026
Dev Diwali is in 37 days. In London, the Pūrṇimā holds 29% of Monday’s pradoṣa and none of Tuesday’s, so Dev Diwali is on Monday.
Monday, 23 November 2026
Dev Diwali is in 37 days. In New York City, the Pūrṇimā holds all of Monday’s pradoṣa and none of Tuesday’s, so Dev Diwali is on Monday.
Monday, 23 November 2026
Dev Diwali is in 37 days. In Toronto, the Pūrṇimā holds all of Monday’s pradoṣa and none of Tuesday’s, so Dev Diwali is on Monday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Sydney, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Dubai, the Pūrṇimā holds 54% of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Tuesday, 24 November 2026
Dev Diwali is in 37 days. In Singapore, the Pūrṇimā holds all of Tuesday’s pradoṣa and none of Monday’s, so Dev Diwali is on Tuesday.
Dev Diwali dates, 2026 to 2028
Each city’s own time| Year | Delhi | Varanasi | London | New York City |
|---|---|---|---|---|
| Dev Diwali 2026 | Tue 24 Nov Lamps 17:23 – 20:05 | Tue 24 Nov Lamps 17:06 – 19:45 | Mon 23 Nov Lamps 18:12 – 19:06 | Mon 23 Nov Lamps 16:31 – 19:23 |
| Dev Diwali 2027 | Sat 13 Nov Lamps 17:27 – 20:06 | Sat 13 Nov Lamps 17:09 – 19:46 | Sat 13 Nov Lamps 16:12 – 19:13 | Sat 13 Nov Lamps 16:38 – 19:27 |
| Dev Diwali 2028 | Wed 1 Nov Lamps 17:34 – 20:10 | Wed 1 Nov Lamps 17:15 – 19:50 | Wed 1 Nov Lamps 16:31 – 19:24 | Wed 1 Nov Lamps 17:50 – 20:34 |
Each year’s page lists all 17 cities and why each keeps its day. Nirṇaya-sindhu pp. 311–312
Questions
From the Nirṇaya-sindhu pp. 311–312, with the page for each.
When is Dev Diwali?
In Delhi: Tuesday, 24 November 2026, Saturday, 13 November 2027 and Wednesday, 1 November 2028. Each city keeps its own day by its own sunrise and sunset. Nirṇaya-sindhu pp. 311–312
What time are the lamps lit?
At dusk, while the Pūrṇimā runs. The texts say dusk; we show pradoṣa, the three muhūrtas after sunset, cut short where the Pūrṇimā begins or ends inside it, as our reading. Nirṇaya-sindhu p. 312
Is Dev Diwali the same day as Kartik Purnima?
It falls on the Kārtika Pūrṇimā, at dusk, but in some years the two are a day apart: Dev Diwali needs the Pūrṇimā at dusk, while the Pūrṇimā fast is kept on the later day, the one joined to the next Pratipadā. Nirṇaya-sindhu pp. 73, 311
Why is it called Tripurotsava?
The Vratarāja, citing the Sanatkumāra-saṃhitā, tells why: after a three-day battle Rudra (Śiva) killed the demon Tripura with a single arrow, and on the Kārtika Pūrṇimā all the gods praised him and offered lamps to Hara. So lamps are given on this day to please Hara, and the dusk festival of lamps is called the great festival of Tripura. Dev Diwali and Dev Deepawali are popular names, found in none of the texts read. Vratarāja f. 317 (Sanatkumāra-saṃhitā)
Why is the date different in the US or UK?
Dev Diwali is decided by the Pūrṇimā at dusk at the city. The tithi begins and ends at the same moment everywhere, but sunrise and sunset come at different hours, so a city far to the west or east can keep another day. Nirṇaya-sindhu pp. 311–312
How the day is found
Read the methodology- The day
- The Kārtika Pūrṇimā current at dusk. If it is current at dusk on both days, or on neither, the later day is kept. Nirṇaya-sindhu pp. 311–312; Dharmasindhu p. 84.
- Dusk
- Pradoṣa, the three muhūrtas after sunset, while the Pūrṇimā runs: our reading of the texts’ dusk (sandhyā).
- The name
- Tripurotsava in the texts, after the demon Tripura, whom Śiva killed (Vratarāja f. 317). Dev Diwali and Dev Deepawali are popular names, found in none of them.
- Sunrise and sunset
- At the centre of the Sun’s disc, with refraction, for the chosen city. Every date is that city’s own.
Sunrise and sunset at the centre of the Sun’s disc, with refraction · Lahiri ayanamsa for month names · each city’s own time · Swiss Ephemeris · Method