Time Difference Between Istanbul and San Francisco
San Francisco is 11h behind Istanbul in standard time, and 10h behind while San Francisco is on daylight saving time.
Istanbul keeps the same clock all year. San Francisco clocks move forward on the second Sunday of March and back on the first Sunday of November. The figures above cover each part of the year. They do not come from the offset on the day the site was built. The live clocks use the current time.
Working Hours Overlap
For each hour of Istanbul's working day (9:00-18:00), here is the corresponding local time in San Francisco. Rows highlighted green fall within standard working hours (9:00-18:00) in both cities. Each block is one part of the year, so the table does not change with the day this page was built.
11h behind (standard time)
| Istanbul | San Francisco | Both working hours? |
|---|---|---|
| 9 AM | 10 PM | No |
| 10 AM | 11 PM | No |
| 11 AM | 12 AM | No |
| 12 PM | 1 AM | No |
| 1 PM | 2 AM | No |
| 2 PM | 3 AM | No |
| 3 PM | 4 AM | No |
| 4 PM | 5 AM | No |
| 5 PM | 6 AM | No |
| 6 PM | 7 AM | No |
10h behind (daylight saving time in San Francisco, while Istanbul is on standard time)
| Istanbul | San Francisco | Both working hours? |
|---|---|---|
| 9 AM | 11 PM | No |
| 10 AM | 12 AM | No |
| 11 AM | 1 AM | No |
| 12 PM | 2 AM | No |
| 1 PM | 3 AM | No |
| 2 PM | 4 AM | No |
| 3 PM | 5 AM | No |
| 4 PM | 6 AM | No |
| 5 PM | 7 AM | No |
| 6 PM | 8 AM | No |
Best Time to Meet
11h behind (standard time)
Istanbul and San Francisco don't share a 9 AM-6 PM working-hours window during standard time. The least disruptive compromise is around 5 PM in Istanbul, which falls at 6 AM in San Francisco. Expect one side to take an early or late call.
10h behind (daylight saving time in San Francisco, while Istanbul is on standard time)
Istanbul and San Francisco don't share a 9 AM-6 PM working-hours window during daylight saving time in San Francisco, while Istanbul is on standard time. The least disruptive compromise is around 4 PM in Istanbul, which falls at 6 AM in San Francisco. Expect one side to take an early or late call.
How the Difference Changes
Only San Francisco changes its clocks, so the gap is not one number. The rules are above. The dates for the year you are reading this page load below.
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Istanbul
Istanbul uses the Europe/Istanbul time zone, at UTC+3 all year. This zone does not observe daylight saving time.
San Francisco
San Francisco uses the America/Los_Angeles time zone. Standard time is UTC-8, and daylight saving time is UTC-7.