Diwali 2027 falls on Friday, October 29 in Singapore, matching India’s date directly. Australia sits far enough ahead of India in time zone that some panchang calculations shift the local observance to a different calendar date, since the Amavasya tithi can already be prevailing there earlier by the clock. This causes the same confusion every year in WhatsApp groups across Melbourne, Sydney, and Perth.
Why Australia can differ
Australia is roughly 4.5 to 6.5 hours ahead of India depending on the state and season. Because tithi boundaries occur at a fixed instant worldwide, being far ahead of India means the relevant tithi can begin or end on what is, locally, an earlier calendar date, the same underlying reason festival dates can shift by a day.
Here’s the practical scenario. Amavasya might start at, say, 3:00 PM IST on October 29 in India. In Sydney (AEDT, UTC+11), that same instant is 8:30 PM on October 29. But the tithi’s end could fall in the early hours of October 30 in India and October 30 late morning in Sydney. Depending on when the tithi prevails during Pradosh Kaal at your location, some Australian panchangs could place Diwali on October 28 or 29. The point is, the math isn’t as simple as “same date as India plus a few hours.”
Singapore is more straightforward
Singapore is only 2.5 hours ahead of India (UTC+8 vs UTC+5:30), which is close enough that tithi boundaries rarely shift the festival to a different calendar date. In nearly every year, Singapore observes Diwali on the same date as India. Diwali is also a gazetted public holiday in Singapore, so the date is confirmed well in advance by the government.
For the roughly 400,000 Indians and PIOs in Singapore, the celebration is well-organized: Little India lights up weeks before Diwali, and community events run throughout the Deepavali period. Puja timing follows the same Pradosh Kaal principle, computed for Singapore’s sunset.
Check which date your community follows
Local temples and Indian associations in Australia typically publish their own confirmed date. The Hindu Council of Australia, temples in Parramatta, and the various state-level Indian associations all confirm their date separately. Check with your local temple or community calendar rather than assuming India’s date applies unchanged. If you see two different dates circulating, the temple nearest you is the one to follow for community events and celebrations.
Getting the puja timing right
Once the date is confirmed, treat the period around your local sunset as Pradosh Kaal for Lakshmi Puja. Australian sunset in late October ranges from about 6:00 PM in Perth to 7:30 PM in Sydney (already on AEDT by then). That’s considerably later than India’s 5:30-ish PM sunset, so your Pradosh Kaal window starts later too.
One common mistake: families call relatives in India, hear they did Lakshmi Puja at 6:45 PM IST, and try to do it at 6:45 PM local time in Melbourne. That might be before your local sunset. Compute your own window based on your city’s sunset, not India’s clock time.
Check your city’s timing
Use the muhurat page with your Australian or Singapore city selected to see that day’s sunset, Rahu Kaal and Abhijit Muhurat.