Mumbai to San Francisco Time Difference
San Francisco is 12 hours and 30 minutes behind Mumbai. When it's 07:04:20 PM in Mumbai, it's 06:34:20 AM in San Francisco.
How Many Hours Behind Is San Francisco From Mumbai?
San Francisco is 12 hours and 30 minutes behind Mumbai. So Mumbai is 12 hours and 30 minutes ahead of San Francisco 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 8:30 PM the previous day in San Francisco. The gap is not fixed all year: it becomes 13 hours and 30 minutes on Sunday, November 1, 2026, when San Francisco changes its clocks.
Best Time to Call Mumbai and San Francisco
Standard 9-to-5 hours in Mumbai and San Francisco never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 11:00 AM in Mumbai, which is 6:30 PM to 10:30 PM in San Francisco.
both at work Mumbai only San Francisco 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 Francisco.
Common Times Converted
Mumbai time on the left, San Francisco time on the right.
Mumbai to San Francisco: 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 Francisco | Working hours |
|---|---|---|
| 12:00 AM | 11:30 AM prev day | San Francisco only |
| 1:00 AM | 12:30 PM prev day | San Francisco only |
| 2:00 AM | 1:30 PM prev day | San Francisco only |
| 3:00 AM | 2:30 PM prev day | San Francisco only |
| 4:00 AM | 3:30 PM prev day | San Francisco only |
| 5:00 AM | 4:30 PM prev day | San Francisco only |
| 6:00 AM | 5:30 PM prev day | — |
| 7:00 AM | 6:30 PM prev day | — |
| 8:00 AM | 7:30 PM prev day | — |
| 9:00 AM | 8:30 PM prev day | Mumbai only |
| 10:00 AM | 9:30 PM prev day | Mumbai only |
| 11:00 AM | 10:30 PM prev day | Mumbai only |
| 12:00 PM | 11:30 PM prev day | Mumbai only |
| 1:00 PM | 12:30 AM | Mumbai only |
| 2:00 PM | 1:30 AM | Mumbai only |
| 3:00 PM | 2:30 AM | Mumbai only |
| 4:00 PM | 3:30 AM | Mumbai only |
| 5:00 PM | 4:30 AM | — |
| 6:00 PM | 5:30 AM | — |
| 7:00 PM | 6:30 AM | — |
| 8:00 PM | 7:30 AM | — |
| 9:00 PM | 8:30 AM | — |
| 10:00 PM | 9:30 AM | San Francisco only |
| 11:00 PM | 10:30 AM | San Francisco only |
Understanding the Mumbai – San Francisco Time Difference
Mumbai runs on Asia/Kolkata, currently IST (UTC+5:30). San Francisco runs on America/Los_Angeles, currently PDT (UTC-7:00). The gap of 12 hours and 30 minutes is simply the distance between those two offsets.
San Francisco 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 Francisco adjusts its clocks and the difference becomes 13 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 Francisco today
Frequently Asked Questions
What is the time difference between Mumbai and San Francisco?
San Francisco is currently 12 hours and 30 minutes behind Mumbai. That gap becomes 13 hours and 30 minutes on Sunday, November 1, 2026, when San Francisco changes its clocks.
How many hours behind is San Francisco from Mumbai?
San Francisco is 12 hours and 30 minutes behind Mumbai. Looking at it the other way, Mumbai is 12 hours and 30 minutes ahead of San Francisco.
What time is it in San Francisco when it is 9:00 AM in Mumbai?
When it is 9:00 AM in Mumbai, it is 8:30 PM the previous day in San Francisco.
Is San Francisco ahead of or behind Mumbai?
San Francisco is 12 hours and 30 minutes behind Mumbai. Mumbai reaches each point in the day first, so San Francisco is still getting started while the Mumbai working day is finishing.
What is the best time to call between Mumbai and San Francisco?
Standard business hours in Mumbai and San Francisco 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 11:00 AM in Mumbai, which is 6:30 PM to 10:30 PM in San Francisco.
Does the time difference between Mumbai and San Francisco change during the year?
Yes. San Francisco observes Daylight Saving Time and Mumbai does not, so the gap between them shifts during the year. It changes to 13 hours and 30 minutes on Sunday, November 1, 2026.
What time zones are Mumbai and San Francisco in?
Mumbai uses the Asia/Kolkata time zone, currently IST (UTC+5:30). San Francisco uses America/Los_Angeles, currently PDT (UTC-7:00).