Wellington is 6.5 hours ahead of Chennai
Best overlap: 8:00 AM to 12:00 PM in Chennai is 2:30 PM to 6:30 PM in Wellington.
Plan around 8:00 AM to 12:00 PM in Chennai, which is 2:30 PM to 6:30 PM in Wellington, to catch everyone during office hours. Since Wellington is 6.5 hours ahead of Chennai, the workdays overlap by around 4 hours; 8:00 AM in Chennai (2:30 PM in Wellington) makes a reliable recurring slot. Don't be caught out by clock changes — Wellington observes daylight saving and Chennai doesn't, so the offset varies by an hour through the year.