Best time to meet between San Francisco and Tokyo

Tokyo is 16 hours ahead of San Francisco on 31 July 2026. Their standard working days do not overlap at all.

San Francisco
UTC-7
America/Los_Angeles
Tokyo
UTC+9
Asia/Tokyo
Shared working hours
None
at 9:00–17:00 each

Participants

Best meeting slots

Local timelines — Fri, Jul 31

Each row is one person's 24h day, aligned to the same instants. Times are labelled in each person's own timezone.

San Francisco
San Francisco
12am6am12pm6pm
Tokyo
Tokyo
6pm12am6am12pm
NightDawnMorningMiddayEveningLateEveryone freeOff-hours

Best meeting times

Ranked for Friday, 31 July 2026, assuming each person is available 9:00–17:00 in their own local time. Change the date or the hours in the planner above and the ranking updates live.

The working days touch but do not overlap: one side's day ends exactly as the other's begins. That edge is still a workable slot — nobody is called outside their hours — but there is no room either side of it.

# San Francisco Tokyo Tradeoff Fairness
1 5:00 PM Fri 9:00 AM Sat Everyone available Everyone comfortable
2 4:30 PM Fri 8:30 AM Sat In hours for San Francisco, early morning for Tokyo Shared discomfort
3 5:30 PM Fri 9:30 AM Sat Evening for San Francisco, in hours for Tokyo Shared discomfort
4 4:00 PM Fri 8:00 AM Sat In hours for San Francisco, early morning for Tokyo Shared discomfort
5 6:00 PM Fri 10:00 AM Sat Evening for San Francisco, in hours for Tokyo Shared discomfort

The full day, side by side

Each row is one person's Friday, in their own local time. Aligned vertically, so any column is the same moment everywhere.

San Francisco · United States America/Los_Angeles
12 AM6 AM12 PM6 PM11 PM
Tokyo · Japan Asia/Tokyo
4 PM10 PM4 AM10 AM3 PM

Solid blocks are working hours; faded blocks are outside them. Colours follow the local time of day.

Daylight saving between San Francisco and Tokyo

The gap is not fixed: it moves between 16 hours and 17 hours across the year, because San Francisco observes daylight saving and Tokyo does not. A time that worked in March can be an hour off in April — the planner uses each city's IANA rules for the exact date you pick, so it stays correct through the switch.

Questions about San Francisco ↔ Tokyo meetings

What is the time difference between San Francisco and Tokyo?
On 31 July 2026 the gap is 16 hours, with Tokyo ahead of San Francisco. Across the year it moves between 16 hours and 17 hours because of daylight saving.
Do San Francisco and Tokyo have overlapping working hours?
No. With standard 9:00–17:00 hours on both sides there is no shared window, so one person has to take the call outside their normal day. The ranking on this page picks the option that costs the least and spreads it as evenly as possible.
Does this account for daylight saving?
The gap is not fixed: it moves between 16 hours and 17 hours across the year, because San Francisco observes daylight saving and Tokyo does not. A time that worked in March can be an hour off in April — the planner uses each city's IANA rules for the exact date you pick, so it stays correct through the switch.
Can I add more people or change the working hours?
Yes. The planner on this page starts with San Francisco and Tokyo on 9:00–17:00, and you can change either city's hours, pick a different date, or add up to eight participants. Nothing is sent to a server.

Or browse every city on the city index, or read the scheduling guides.