Time zone converter

San Francisco time to Tokyo

See every hour side by side, then click or drag to choose the exact moment.

Suggested times

Suggested cities

City shortcuts in alphabetical order. Swipe or use the arrows. Selected cities are hidden.

Current local time
San Francisco
06:20:07 PM
Tuesday, 20 October · UTC -07:00
Time difference16 hrs
Tokyo
10:20:07 AM
Wednesday, 21 October · UTC +09:00
At a glance

San Francisco is 16 hrs behind Tokyo.

Calculated for 20 October 2026 to account for daylight saving.

Shared 9–5 hours

No standard-hours overlap

Try an early or late slot in the timeline below.

Ready to share

Choose any 5-minute slot

Click the grid, then copy a link or add the selected time to your calendar.

San Francisco to Tokyo time converter

iClick any row or drag the line to choose an exact time
Soft green · 09:00–17:00 working hoursShared working hours · all cities in greenAmber · early / late, 07:00–09:00 or 17:00–19:00Grey · overnight, 19:00–07:00

Daily local-time defaults, not anyone’s actual workdays or availability.

The blue handle marks your selected time. The dashed Now line marks actual current time on today’s date.

Tuesday
20/10/2026
Selected time
San Francisco Less convenient06:20 PM20 Oct 2026 · UTC-07:00 · DST
Tokyo Working hours10:20 AM21 Oct 2026 · UTC+09:00
Less convenient in at least one city

Shared working hours means every selected city is in the green range. These hints do not check calendars.

San Francisco

Los Angeles (Local time)

United States

Tokyo

Tokyo

Japan

Suggested meeting times

6 choices · 2026-10-20 · times in San Francisco

None of these recommendations stays within 09:00–17:00 for every city for the whole meeting. These alternatives include early, late or overnight time.

Top-ranked option preview · 3:00 PM

Choose a time above to update the meeting.

San Francisco 15:00–16:00 · 2026-10-20 · UTC−07:00 · Working hoursTokyo 07:00–08:00 · 2026-10-21 · UTC+09:00 · Less convenient

Daily local-time defaults, not calendar availability. Choices can be different starts inside the same working-hours window.

San Francisco6:20 PM · 20 Oct 2026 · UTC-07:00Tokyo10:20 AM · 21 Oct 2026 · UTC+09:00

Planning guide

The best time to call from San Francisco to Tokyo

San Francisco is 16 hrs behind Tokyo. Because time-zone rules can change with daylight saving, the exact offset may be different on another date; the converter above recalculates it whenever you change the day.

There is no overlap between 9:00 am and 5:00 pm in both cities on this date. Use the coloured timeline to find the least disruptive early-morning or evening option.

Select a row in the full 24-hour table to create a precise, shareable time. The selected link retains the cities, date, and time so everyone opens the same conversion.

Dated planning examples

Start with 20 October 2026 in San Francisco. Both local dates are shown so an evening or morning call is not mistaken for the same calendar day.

  • San Francisco: → Tokyo:
  • San Francisco: → Tokyo:

Seasonal check for 2026: on 15 January 2026, San Francisco is 17 hours behind Tokyo; on 15 July 2026, San Francisco is 16 hours behind Tokyo. These are dated samples, not the full transition calendar. Change the converter date for the exact day you need.

These are conversion examples, not confirmed availability. The 9–5 overlap above assumes 09:00–17:00 local hours and does not account for weekends, holidays or personal schedules.

How is the time difference calculated?+

oTimey uses each city’s IANA time zone and the selected calendar date, including local daylight-saving rules and half-hour or 45-minute offsets.

Can the difference change during the year?+

Yes. Cities can start and end daylight saving on different dates, so their difference may shift by an hour for part of the year.

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