Mumbai to San Antonio Time Difference
San Antonio is 10 hours and 30 minutes behind Mumbai. When it's 07:04:11 PM in Mumbai, it's 08:34:11 AM in San Antonio.
How Many Hours Behind Is San Antonio From Mumbai?
San Antonio is 10 hours and 30 minutes behind Mumbai. So Mumbai is 10 hours and 30 minutes ahead of San Antonio looking the other way — the same gap, described from the other end.
In practice that means a working day in Mumbai starts when it is already 10:30 PM the previous day in San Antonio. The gap is not fixed all year: it becomes 11 hours and 30 minutes on Sunday, November 1, 2026, when San Antonio changes its clocks.
Best Time to Call Mumbai and San Antonio
Standard 9-to-5 hours in Mumbai and San Antonio never overlap, so someone has to take the call outside their working day. The most workable window is 6:00 PM to 10:00 PM in Mumbai, which is 7:30 AM to 11:30 AM in San Antonio.
both at work Mumbai only San Antonio only neither — hours shown along the strip are Mumbai local time.
Convert a Specific Time
Pick any date and time in Mumbai to see the exact equivalent in San Antonio.
Common Times Converted
Mumbai time on the left, San Antonio time on the right.
Mumbai to San Antonio: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Mumbai. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Mumbai | San Antonio | Working hours |
|---|---|---|
| 12:00 AM | 1:30 PM prev day | San Antonio only |
| 1:00 AM | 2:30 PM prev day | San Antonio only |
| 2:00 AM | 3:30 PM prev day | San Antonio only |
| 3:00 AM | 4:30 PM prev day | San Antonio only |
| 4:00 AM | 5:30 PM prev day | — |
| 5:00 AM | 6:30 PM prev day | — |
| 6:00 AM | 7:30 PM prev day | — |
| 7:00 AM | 8:30 PM prev day | — |
| 8:00 AM | 9:30 PM prev day | — |
| 9:00 AM | 10:30 PM prev day | Mumbai only |
| 10:00 AM | 11:30 PM prev day | Mumbai only |
| 11:00 AM | 12:30 AM | Mumbai only |
| 12:00 PM | 1:30 AM | Mumbai only |
| 1:00 PM | 2:30 AM | Mumbai only |
| 2:00 PM | 3:30 AM | Mumbai only |
| 3:00 PM | 4:30 AM | Mumbai only |
| 4:00 PM | 5:30 AM | Mumbai only |
| 5:00 PM | 6:30 AM | — |
| 6:00 PM | 7:30 AM | — |
| 7:00 PM | 8:30 AM | — |
| 8:00 PM | 9:30 AM | San Antonio only |
| 9:00 PM | 10:30 AM | San Antonio only |
| 10:00 PM | 11:30 AM | San Antonio only |
| 11:00 PM | 12:30 PM | San Antonio only |
Understanding the Mumbai – San Antonio Time Difference
Mumbai runs on Asia/Kolkata, currently IST (UTC+5:30). San Antonio runs on America/Chicago, currently CDT (UTC-5:00). The gap of 10 hours and 30 minutes is simply the distance between those two offsets.
San Antonio 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 San Antonio 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 India · Daylight Saving Time in the United States.
Mumbai today
San Antonio today
Frequently Asked Questions
What is the time difference between Mumbai and San Antonio?
San Antonio is currently 10 hours and 30 minutes behind Mumbai. That gap becomes 11 hours and 30 minutes on Sunday, November 1, 2026, when San Antonio changes its clocks.
How many hours behind is San Antonio from Mumbai?
San Antonio is 10 hours and 30 minutes behind Mumbai. Looking at it the other way, Mumbai is 10 hours and 30 minutes ahead of San Antonio.
What time is it in San Antonio when it is 9:00 AM in Mumbai?
When it is 9:00 AM in Mumbai, it is 10:30 PM the previous day in San Antonio.
Is San Antonio ahead of or behind Mumbai?
San Antonio is 10 hours and 30 minutes behind Mumbai. Mumbai reaches each point in the day first, so San Antonio is still getting started while the Mumbai working day is finishing.
What is the best time to call between Mumbai and San Antonio?
Standard business hours in Mumbai and San Antonio do not overlap at all, so one side has to step outside the 9-to-5. The most workable window is 6:00 PM to 10:00 PM in Mumbai, which is 7:30 AM to 11:30 AM in San Antonio.
Does the time difference between Mumbai and San Antonio change during the year?
Yes. San Antonio 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 Mumbai and San Antonio in?
Mumbai uses the Asia/Kolkata time zone, currently IST (UTC+5:30). San Antonio uses America/Chicago, currently CDT (UTC-5:00).