Does San Diego observe daylight saving time?

Yes. San Diego is on PDT (UTC-7) now, and its clocks go back 1 hour on Sun, Nov 1, to PST (UTC-8).

Does Tokyo observe daylight saving time?

No. Tokyo stays on JST (UTC+9) all year, so its clocks don't change.

What time is it in Tokyo when it's 9 AM in San Diego?

1:00 AM in Tokyo, the next day (Sun, Oct 18, when it's Sat, Oct 17 in San Diego).

San Diego to Tokyo Meeting Planner

Tokyo is 16 hours ahead of San Diego right now. Their working days don't overlap today.

San Diego · United States

8:35 PM

Sat, Oct 17 · PDT · summer time

Tokyo · Japan

12:35 PM

Sun, Oct 18 · JST

Best Meeting Times Between San Diego and Tokyo

No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 3:00 PM in San Diego, which is 7:00 AM in Tokyo; consider splitting into two shorter meetings or shifting someone's hours.

Who's meeting

2 of 4 places

San DiegoOrganizerUnited States ·· summer time8:35PMnow
TokyoJapan ·12:35PMTomorrow · now

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in San Diego

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in San Diego time.

3:00PMBest · GoodWorking hours in San Diego (15:00); just outside working hours in Tokyo (07:00, next day).
4:00PMOption 2 · GoodWorking hours in San Diego (16:00); just outside working hours in Tokyo (08:00, next day).
5:00PMOption 3 · GoodWorking hours in Tokyo (09:00, next day); just outside working hours in San Diego (17:00).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
San DiegoPDT
TokyoUTC+9
UTC	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

San Diego3:00 PM PDTSat, Oct 17
Tokyo7:00 AM UTC+9Sun, Oct 18
UTC2026-10-17 22:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between San Diego and Tokyo

Tokyo is 16 hours ahead of San Diego right now: Tokyo is on JST (UTC+9) and San Diego on PDT (UTC-7). That changes on Sun, Nov 1, when clocks go back in San Diego: then Tokyo is 17 hours ahead of San Diego.

Time difference between San Diego and Tokyo over the next 12 months
From	Difference	Why
Now	Tokyo 16 hours ahead	—
Sun, Nov 1	Tokyo 17 hours ahead	Clocks go back in San Diego
Sun, Mar 14, 2027	Tokyo 16 hours ahead	Clocks go forward in San Diego

San Diego is on Pacific Standard Time. Tokyo is on Japan Standard Time.

Frequently Asked Questions: San Diego & Tokyo Scheduling

What is the time difference between San Diego and Tokyo?: Tokyo is 16 hours ahead of San Diego right now: Tokyo is on JST (UTC+9) and San Diego on PDT (UTC-7). That changes on Sun, Nov 1, when clocks go back in San Diego: then Tokyo is 17 hours ahead of San Diego.
What is the best time to schedule a meeting between San Diego and Tokyo?: No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 3:00 PM in San Diego, which is 7:00 AM in Tokyo; consider splitting into two shorter meetings or shifting someone's hours.
Does San Diego observe daylight saving time?: Yes. San Diego is on PDT (UTC-7) now, and its clocks go back 1 hour on Sun, Nov 1, to PST (UTC-8).
Does Tokyo observe daylight saving time?: No. Tokyo stays on JST (UTC+9) all year, so its clocks don't change.
What time is it in Tokyo when it's 9 AM in San Diego?: 1:00 AM in Tokyo, the next day (Sun, Oct 18, when it's Sat, Oct 17 in San Diego).

Or see every city pair, or plan with more places in the meeting planner.