San Francisco to Kolkata Time Difference
🇺🇸 San Francisco is currently 12.5 hours ahead of 🇮🇳 Kolkata. This difference varies between 12.5h and 13.5h due to Daylight Saving Time.
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Difference
+12.5h
Business overlap
None
Distance
12,573 km
Approx. flight
14.8h
Hour-by-Hour: San Francisco to Kolkata
| 🇺🇸 San Francisco | 🇮🇳 Kolkata | Note |
|---|---|---|
| 12:00 AM | 12:30 PM(prev day) | Previous day |
| 1:00 AM | 1:30 PM(prev day) | Previous day |
| 2:00 AM | 2:30 PM(prev day) | Previous day |
| 3:00 AM | 3:30 PM(prev day) | Previous day |
| 4:00 AM | 4:30 PM(prev day) | Previous day |
| 5:00 AM | 5:30 PM(prev day) | Previous day |
| 6:00 AM | 6:30 PM(prev day) | Previous day |
| 7:00 AM | 7:30 PM(prev day) | Previous day |
| 8:00 AM | 8:30 PM(prev day) | Previous day |
| 9:00 AM | 9:30 PM(prev day) | Previous day |
| 10:00 AM | 10:30 PM(prev day) | Previous day |
| 11:00 AM | 11:30 PM(prev day) | Previous day |
| 12:00 PM | 12:30 AM | |
| 1:00 PM | 1:30 AM | |
| 2:00 PM | 2:30 AM | |
| 3:00 PM | 3:30 AM | |
| 4:00 PM | 4:30 AM | |
| 5:00 PM | 5:30 AM | |
| 6:00 PM | 6:30 AM | |
| 7:00 PM | 7:30 AM | |
| 8:00 PM | 8:30 AM | |
| 9:00 PM | 9:30 AM | |
| 10:00 PM | 10:30 AM | |
| 11:00 PM | 11:30 AM |
Daylight Saving Time (DST)
San Francisco observes Daylight Saving Time, while Kolkata does not. This causes the time difference to shift between 12.5 hours ahead and 13.5 hours ahead depending on the season. Currently, San Francisco is 12.5 hours ahead relative to Kolkata.
Min difference
12.5h
Max difference
13.5h
Best Meeting Times
There is no overlap between standard business hours (9 AM – 6 PM) in San Francisco and Kolkata. Consider scheduling early morning or late evening calls to bridge the gap.
Frequently Asked Questions
What is the time difference between San Francisco and Kolkata?
The time difference between San Francisco and Kolkata is currently 12.5 hours ahead. San Francisco uses PDT (UTC-7), while Kolkata uses GMT+5:30 (UTC+5:30). This difference varies seasonally due to Daylight Saving Time, ranging from 12.5 hours ahead to 13.5 hours ahead.
When it's noon in San Francisco, what time is it in Kolkata?
When it's 12:00 PM (noon) in San Francisco, it is 12:30 AM in Kolkata. Use our calculator above to convert any other time.
Does the time difference between San Francisco and Kolkata change?
Yes, the time difference changes throughout the year. Because San Francisco observes Daylight Saving Time, the offset shifts between 12.5 hours ahead and 13.5 hours ahead at different times of the year.
What are the best times to schedule a call between San Francisco and Kolkata?
There is no overlap between standard business hours (9 AM – 6 PM) in San Francisco and Kolkata. Consider scheduling early morning in one city or late evening in the other to find a mutually reasonable time.
Is San Francisco ahead or behind Kolkata?
San Francisco is currently 12.5 hours behind Kolkata.
What time zone is San Francisco in?
San Francisco is in the America/Los Angeles time zone, currently using PDT (UTC-7). San Francisco observes Daylight Saving Time, so the offset changes twice a year.
What time is midnight in San Francisco in Kolkata?
When it is midnight (12:00 AM) in San Francisco, it is 12:30 PM in Kolkata.