Quick answer
10 AM EST is 8:30 PM IST in Mumbai (winter). During US daylight saving (EDT), 10 AM EDT is 7:30 PM IST. India Standard Time (IST, UTC+5:30) never observes daylight saving — the offset shifts only when the US changes clocks in March and November.
10 AM Eastern to Mumbai: what to know
India Standard Time is UTC+5:30, a half-hour offset that creates the notable 10.5-hour gap with EST (9.5 hours with EDT). 10 AM New York = 8:30 PM Mumbai in winter, or 7:30 PM in summer — both in the evening for Mumbai participants. The more commonly preferred window is 8–9 AM ET / 6:30–7:30 PM IST, which places India calls at end-of-business rather than evening.
Since India never observes daylight saving, the Mumbai time for a given ET hour only changes twice per year when the US switches clocks. Use the New York to Mumbai planner for live times or the Meeting Time Finder for a full team schedule.
What is 10 AM EST in Mumbai?
10 AM EST is 8:30 PM IST in Mumbai (winter). During US daylight saving (EDT), 10 AM EDT is 7:30 PM IST. India Standard Time (IST, UTC+5:30) never observes daylight saving, so the Mumbai time shifts only when the US changes clocks.
Why does India have a half-hour offset?
India Standard Time is UTC+5:30, a half-hour offset that reflects a historical compromise covering the country's east–west span. This creates the 10.5-hour gap with EST (or 9.5 hours with EDT).
Is 10 AM ET a good time for India calls?
10 AM EST = 8:30 PM Mumbai asks India participants to attend in the evening. A more balanced window is 8–9 AM EST / 6:30–7:30 PM IST, which is end-of-business for India while keeping New York early.
What is the best US East Coast to Mumbai meeting time?
8–9 AM EST / 6:30–7:30 PM IST is the most common window. Use the New York to Mumbai planner for the current live overlap.