When it is 09:00 in San Francisco it is 18:00 in Zurich in January and 18:00 in July. Zurich is 9 hours ahead San Francisco right now — and the difference is the same all year. This page gives the live times in both cities, the overlap between their working days, the daylight saving dates that move the difference, and the best meeting windows.
Try the tool: Time Zone Converter — convert any time between San Francisco and Zurich, with the offset for the date you pick.
Live times in San Francisco and Zurich
The two cities side by side. The January column uses the winter offsets (San Francisco UTC−08:00, Zurich UTC+01:00); the July column uses the summer offsets (San Francisco UTC−07:00, Zurich UTC+02:00).
| Time in San Francisco | Zurich in January | Zurich in July |
|---|---|---|
| 00:00 | 09:00 | 09:00 |
| 06:00 | 15:00 | 15:00 |
| 09:00 | 18:00 | 18:00 |
| 12:00 | 21:00 | 21:00 |
| 15:00 | 00:00 | 00:00 |
| 17:00 | 02:00 | 02:00 |
| 21:00 | 06:00 | 06:00 |
The world clock shows the current time in both cities live, and the individual city pages — time in San Francisco and time in Zurich — explain each city's time zone, offsets and daylight saving in full.
The time difference between San Francisco and Zurich
The difference is constant: Zurich is 9 hours ahead San Francisco on every day of the year. That is the simplest case in time-zone work — the answer does not depend on the date, and a meeting set for 09:00 in San Francisco is always 18:00 in Zurich. The reason the difference never changes is that both cities observe daylight saving and change their clocks on the same dates.
To convert a time, add the difference: 09:00 in San Francisco is 18:00 in Zurich in January and 18:00 in July; 17:00 in San Francisco — the end of the working day — is 02:00 in Zurich in January and 02:00 in July. To go the other way, subtract it: 09:00 in Zurich is 00:00 in San Francisco in January. The time difference calculator does the arithmetic for any date, and the UTC to Zurich page gives the full conversion table for Zurich.
Meeting overlap between San Francisco and Zurich
The overlap is the hours when both cities are in their working day (09:00–17:00 local time). The table marks the overlapping hours in San Francisco's working day and shows what time they are in Zurich.
January
| San Francisco time | Zurich time | Both working? |
|---|---|---|
| 09:00 | 18:00 | No |
| 10:00 | 19:00 | No |
| 11:00 | 20:00 | No |
| 12:00 | 21:00 | No |
| 13:00 | 22:00 | No |
| 14:00 | 23:00 | No |
| 15:00 | 00:00 | No |
| 16:00 | 01:00 | No |
In January the overlap is 0 hours: there is no hour when both cities are in their working day. In July it is 0 hours: there is no hour when both cities are in their working day. The two working days do not overlap at all — the difference is too large. The only options are to meet at the edge of the day, to rotate the awkward hour, or to record the meeting.
Daylight saving in San Francisco and Zurich
San Francisco observes daylight saving: in 2026 the clocks go forward on 8 March 2026 and back on 1 November 2026, moving the offset from UTC−08:00 to UTC−07:00.
Zurich observes daylight saving: in 2026 the clocks go forward on 29 March 2026 and back on 25 October 2026, moving the offset from UTC+01:00 to UTC+02:00.
The difference changes on Sunday, 8 March 2026 and Sunday, 29 March 2026 and Sunday, 25 October 2026 and Sunday, 1 November 2026 in 2026. On those dates, one city changes its clocks and the other does not — or they change on different days — so the difference moves by an hour. A standing meeting set in one city's local time will land an hour early or late on the other side until the second city catches up. The fix is to set the calendar event in UTC, or to check the overlap again after each change. The individual DST pages — San Francisco DST 2026 and Zurich DST 2026 — give the exact dates for each city.
Best meeting windows
There is no window inside both working days, in January or in July. The least-bad options are the edges: 08:00 in San Francisco is 17:00 in Zurich in January — before the working day in San Francisco but a reasonable evening in Zurich — and 17:00 in San Francisco is 02:00 in Zurich, which is the morning in Zurich the next day if the difference is large. Rotate the early start between the two sides, week by week, so the same people are not always the ones getting up early.
Calling and travel notes
When it is 09:00 in San Francisco it is 18:00 in Zurich in January; when it is 12:00 in San Francisco it is 21:00 in Zurich; when it is 17:00 in San Francisco it is 02:00 in Zurich. The difference is under 12 hours, so the two cities are usually on the same date — but check the date for late-evening and early-morning times, when the date can differ by a day. Scheduling between the Americas and Europe is the easiest intercontinental case: the difference is 5–9 hours, so the working days overlap for several hours. The best window is late morning in San Francisco and afternoon in Zurich (or the reverse), when both sides are in their working day. Watch the three weeks in March when the United States has changed its clocks and Europe has not — the overlap shifts by an hour, and standing meetings land at the wrong time.
Worked conversions
Six conversions, for January (offsets San Francisco UTC−08:00, Zurich UTC+01:00):
| San Francisco | Zurich |
|---|---|
| 08:00 | 17:00 |
| 09:00 | 18:00 |
| 12:00 | 21:00 |
| 14:00 | 23:00 |
| 17:00 | 02:00 |
| 20:00 | 05:00 |
In July, the answers are the same. For the reverse direction, see Zurich to San Francisco time.
San Francisco and Zurich at a glance
| Fact | San Francisco | Zurich |
|---|---|---|
| Country | United States | Switzerland |
| Region | Americas | Europe |
| IANA time zone | America/Los_Angeles |
Europe/Zurich |
| Standard offset | UTC−08:00 | UTC+01:00 |
| Daylight saving offset | UTC−07:00 | UTC+02:00 |
| Offset in January 2026 | UTC−08:00 | UTC+01:00 |
| Offset in July 2026 | UTC−07:00 | UTC+02:00 |
| Observes daylight saving | Yes | Yes |
The table is the whole pair in one place. The two numbers that matter most are the January and July offsets: if they are the same in both columns for a city, that city's offset never changes; if they differ, the city observes daylight saving and the difference between the cities moves with it. The individual city pages — time in San Francisco and time in Zurich — explain each city's time zone, and the DST pages — San Francisco DST 2026 and Zurich DST 2026 — give the exact change dates.
Frequently asked questions
What is the time difference between San Francisco and Zurich?
Zurich is 9 hours ahead San Francisco right now. In January the difference is 9 hours ahead and in July it is 9 hours ahead — it is the same all year.
How do I schedule a recurring meeting between San Francisco and Zurich?
Pick a time inside the overlap — the edge of the day, since there is no overlap — and set the calendar event in UTC so it moves correctly when the clocks change. Re-check the overlap in March and October, when the difference moves, and rotate the time if the meeting falls outside someone's working day.
What time is it in Zurich when it is 09:00 in San Francisco?
It is 18:00 in January and 18:00 in July. The time zone converter gives the answer for any date.
What is the best time for a meeting between San Francisco and Zurich?
There is no hour inside both working days. Meet at the edge of the day — early morning in one city, evening in the other — and rotate the awkward hour.
Does the time difference between San Francisco and Zurich change during the year?
No. The difference is 9 hours ahead all year, because both cities change their clocks on the same dates.
What time is it in San Francisco when it is 09:00 in Zurich?
It is 00:00 in January and 00:00 in July. See Zurich to San Francisco time for the full comparison from Zurich's side.
What are the time zones of San Francisco and Zurich?
San Francisco is in America/Los_Angeles (UTC−08:00 standard time) and Zurich is in Europe/Zurich (UTC+01:00 standard time).
What time is it in San Francisco when it is midnight in Zurich?
It is 15:00 in San Francisco in January and 15:00 in July — the same day, because San Francisco is ahead of Zurich. Midnight conversions are the ones that most often land on the wrong date, so always check the date as well as the time.
Sources
- IANA Time Zone Database, via Node.js Intl (
Intl.DateTimeFormatwithtimeZone) — offsets, daylight saving dates and local times in this article were worked out from the IANA database, not typed from memory. - TimeFlow's own time-zone data (
data/cities.ts,data/dst.ts), computed from the IANA database. - TimeFlow's time zone converter and meeting planner — the live tools behind the numbers on this page.
- Time-zone and daylight saving rules are set by governments and can change. For flights, deadlines and meetings that cannot move, confirm the time with an official source.