Singapore to San Francisco — exact time difference
Singapore is 15 hours ahead of San Francisco. When it's noon in Singapore, it's 21:00 in San Francisco.
Singapore runs on Asia/Singapore; San Francisco runs on America/Los_Angeles. Together they are 15 hours apart.
Working hours overlap
There is no business hours overlap between Singapore and San Francisco during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best call times between these locations
Singapore and San Francisco have no shared working window. These slots minimize out-of-hours disruption for both sides.
07:00 Singapore / 16:00 San Francisco⚡ One side off-hours
⚠️ 2h before working hours in Singapore
09:00 Singapore / 18:00 San Francisco⚡ One side off-hours
⚠️ 2h after working hours in San Francisco
06:00 Singapore / 15:00 San Francisco⚡ One side off-hours
⚠️ 3h before working hours in Singapore
Working hours defined as 09:00–17:00 local time for each location.
Public holidays this year
⚡ Upcoming holidays in both locations, confirm with your contact before booking.
Singapore3 holidays
Aug 10National Day
Nov 9Deepavali
Dec 25Christmas Day
San Francisco7 holidays
Jul 3Independence DaySOON
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
Singapore and San Francisco — practical scheduling
Working across Singapore (Singapore) and San Francisco (USA) is a challenge — the 15-hour difference means no shared business hours window under a standard schedule. Flexibility from at least one side is required.
💡 Practical scheduling guidelines
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A 07:00 meeting in Singapore means 16:00 in San Francisco (2h before working hours in Singapore).
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A 09:00 meeting in Singapore means 18:00 in San Francisco (2h after working hours in San Francisco).
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A 06:00 meeting in Singapore means 15:00 in San Francisco (3h before working hours in Singapore).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am Singapore".
