Houston to Mumbai Time Difference
Mumbai is 10 hours and 30 minutes ahead of Houston. When it's 07:56:54 AM in Houston, it's 06:26:54 PM in Mumbai.
How Many Hours Ahead Is Mumbai From Houston?
Mumbai is 10 hours and 30 minutes ahead of Houston. So Houston is 10 hours and 30 minutes behind Mumbai looking the other way — the same gap, described from the other end.
In practice that means a working day in Houston starts when it is already 7:30 PM in Mumbai. The gap is not fixed all year: it becomes 11 hours and 30 minutes on Sunday, November 1, 2026, when Houston changes its clocks.
Best Time to Call Houston and Mumbai
Standard 9-to-5 hours in Houston and Mumbai never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 12:00 PM in Houston, which is 5:30 PM to 10:30 PM in Mumbai.
both at work Houston only Mumbai only neither — hours shown along the strip are Houston local time.
Convert a Specific Time
Pick any date and time in Houston to see the exact equivalent in Mumbai.
Common Times Converted
Houston time on the left, Mumbai time on the right.
Houston to Mumbai: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Houston. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Houston | Mumbai | Working hours |
|---|---|---|
| 12:00 AM | 10:30 AM | Mumbai only |
| 1:00 AM | 11:30 AM | Mumbai only |
| 2:00 AM | 12:30 PM | Mumbai only |
| 3:00 AM | 1:30 PM | Mumbai only |
| 4:00 AM | 2:30 PM | Mumbai only |
| 5:00 AM | 3:30 PM | Mumbai only |
| 6:00 AM | 4:30 PM | Mumbai only |
| 7:00 AM | 5:30 PM | — |
| 8:00 AM | 6:30 PM | — |
| 9:00 AM | 7:30 PM | Houston only |
| 10:00 AM | 8:30 PM | Houston only |
| 11:00 AM | 9:30 PM | Houston only |
| 12:00 PM | 10:30 PM | Houston only |
| 1:00 PM | 11:30 PM | Houston only |
| 2:00 PM | 12:30 AM next day | Houston only |
| 3:00 PM | 1:30 AM next day | Houston only |
| 4:00 PM | 2:30 AM next day | Houston only |
| 5:00 PM | 3:30 AM next day | — |
| 6:00 PM | 4:30 AM next day | — |
| 7:00 PM | 5:30 AM next day | — |
| 8:00 PM | 6:30 AM next day | — |
| 9:00 PM | 7:30 AM next day | — |
| 10:00 PM | 8:30 AM next day | — |
| 11:00 PM | 9:30 AM next day | Mumbai only |
Understanding the Houston – Mumbai Time Difference
Houston runs on America/Chicago, currently CDT (UTC-5:00). Mumbai runs on Asia/Kolkata, currently IST (UTC+5:30). The gap of 10 hours and 30 minutes is simply the distance between those two offsets.
Houston observes Daylight Saving Time and Mumbai does not, so the gap between them shifts by an hour twice a year. The next shift is on Sunday, November 1, 2026, when Houston adjusts its clocks and the difference becomes 11 hours and 30 minutes. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States · Daylight Saving Time in India.
Houston today
Mumbai today
Frequently Asked Questions
What is the time difference between Houston and Mumbai?
Mumbai is currently 10 hours and 30 minutes ahead of Houston. That gap becomes 11 hours and 30 minutes on Sunday, November 1, 2026, when Houston changes its clocks.
How many hours ahead is Mumbai from Houston?
Mumbai is 10 hours and 30 minutes ahead of Houston. Looking at it the other way, Houston is 10 hours and 30 minutes behind Mumbai.
What time is it in Mumbai when it is 9:00 AM in Houston?
When it is 9:00 AM in Houston, it is 7:30 PM in Mumbai.
Is Mumbai ahead of or behind Houston?
Mumbai is 10 hours and 30 minutes ahead of Houston. Mumbai reaches each point in the day first, so its working day is already finishing while Houston is still getting started.
What is the best time to call between Houston and Mumbai?
Standard business hours in Houston and Mumbai do not overlap at all, so one side has to step outside the 9-to-5. The most workable window is 7:00 AM to 12:00 PM in Houston, which is 5:30 PM to 10:30 PM in Mumbai.
Does the time difference between Houston and Mumbai change during the year?
Yes. Houston observes Daylight Saving Time and Mumbai does not, so the gap between them shifts during the year. It changes to 11 hours and 30 minutes on Sunday, November 1, 2026.
What time zones are Houston and Mumbai in?
Houston uses the America/Chicago time zone, currently CDT (UTC-5:00). Mumbai uses Asia/Kolkata, currently IST (UTC+5:30).