Bhai Dooj 2026 falls on November 10, part of the Diwali 5-day cycle; Bhai Dooj 2027 falls on October 31. For siblings living in different countries, a question comes up that doesn’t have a clean textbook answer: if a sister in Mumbai and a brother in Chicago do the tilak over video call, whose local afternoon muhurat should the ceremony follow?

Why this is different from a moonrise-based festival

Karva Chauth’s moonrise, or Diwali’s Pradosh Kaal sunset window, are tied to a specific physical, location-bound astronomical event: the moon or sun actually rising or setting where you are. Bhai Dooj’s tilak muhurat is different. It’s traditionally timed to Aparahna Kaal, the afternoon period, which is a favourable window rather than a single fixed astronomical instant tied to one place. That distinction matters: there is no single “correct” location for a joint ceremony the way there is for watching an actual moonrise.

The honest answer

Either sibling’s local Aparahna Kaal window works. Since the ceremony over video call is a shared symbolic moment rather than something anchored to a specific place, following the sister’s local afternoon window, the brother’s, or simply picking a mutually convenient time that falls within reach of either is equally valid. What matters more traditionally is that the tilak is performed during the afternoon period on the correct date, not whose afternoon it technically is.

Practical tips for a joint video-call ceremony

Agree on a specific time in advance, ideally one that falls within Aparahna Kaal for at least one location and reasonably close to it for the other. Have the tilak items (roli, rice, a small lamp, sweets) ready on both ends so the ritual can be mirrored simultaneously on camera rather than one sibling waiting on the other. A stable video connection and good lighting matter more for the experience than debating the astrological technicality of whose afternoon it is.

A worked example

If Aparahna Kaal in Mumbai on Bhai Dooj runs roughly 1:30 PM to 4:00 PM IST, that same window lands around 3:00 AM to 5:30 AM Eastern Time in the US, since India is 10.5 hours ahead of the US East Coast for most of the year. A brother in Chicago is not going to do tilak at 3 AM, so most families instead just pick a mutually workable time, often the sister’s own Aparahna Kaal, and treat the brother’s participation over video call as valid regardless of what time it is for him.

When no window overlaps at all

Some sibling pairs simply cannot find a waking-hour overlap on the actual date, especially with a large gap like India to the US West Coast. In that case, many families perform the ritual on the nearest convenient weekend rather than forcing an overnight call on a working weekday, treating the sentiment and the gesture as what matters rather than an exact date match. This isn’t the traditionally prescribed approach, but it’s common enough among diaspora families that most priests and elders don’t object to it when travel or scheduling makes the actual date impossible.

Mailing tilak items in advance

For siblings who won’t manage a video call at all, some send a small tilak kit, roli, rice, a sweet, by courier ahead of the date, so the receiving sibling can do a solo version of the ritual on their own convenient time while still marking the day. It’s not the same as a shared moment over video, but it keeps the tradition alive when even a call isn’t practical.

Check your city’s timing

Use the muhurat page with each sibling’s city selected to see that day’s Aparahna Kaal window for both locations.