Does Philadelphia observe daylight saving time?

Yes. Philadelphia is on EDT (UTC-4) now, and its clocks go back 1 hour on Sun, Nov 1, to EST (UTC-5).

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 Philadelphia?

10:00 PM in Tokyo, on the same day.

Philadelphia to Tokyo Meeting Planner

Tokyo is 13 hours ahead of Philadelphia right now. Their working days don't overlap today.

Philadelphia · United States

10:36 PM

Sat, Oct 17 · EDT · summer time

Tokyo · Japan

11:36 AM

Sun, Oct 18 · JST

Best Meeting Times Between Philadelphia and Tokyo

No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 9:00 AM in Philadelphia, which is 10:00 PM in Tokyo; consider splitting into two shorter meetings or shifting someone's hours.

Who's meeting

2 of 4 places

PhiladelphiaOrganizerUnited States ·· summer time10:36PMnow
TokyoJapan ·11:36AMTomorrow · now

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

Date in Philadelphia

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in Philadelphia time.

9:00AMBest · PossibleWorking hours in Philadelphia (09:00); late evening in Tokyo (22:00).
8:00PMOption 2 · PossibleWorking hours in Tokyo (09:00, next day); late evening in Philadelphia (20:00).
9:00PMOption 3 · PossibleWorking hours in Tokyo (10:00, next day); late evening in Philadelphia (21:00).

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
PhiladelphiaEDT
TokyoUTC+9
UTC	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03

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

Your meeting

Philadelphia9:00 AM EDTSat, Oct 17
Tokyo10:00 PM UTC+9Sat, Oct 17
UTC2026-10-17 13:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Philadelphia and Tokyo

Tokyo is 13 hours ahead of Philadelphia right now: Tokyo is on JST (UTC+9) and Philadelphia on EDT (UTC-4). That changes on Sun, Nov 1, when clocks go back in Philadelphia: then Tokyo is 14 hours ahead of Philadelphia.

Time difference between Philadelphia and Tokyo over the next 12 months
From	Difference	Why
Now	Tokyo 13 hours ahead	—
Sun, Nov 1	Tokyo 14 hours ahead	Clocks go back in Philadelphia
Sun, Mar 14, 2027	Tokyo 13 hours ahead	Clocks go forward in Philadelphia

Philadelphia is on Eastern Standard Time. Tokyo is on Japan Standard Time.

Frequently Asked Questions: Philadelphia & Tokyo Scheduling

What is the time difference between Philadelphia and Tokyo?: Tokyo is 13 hours ahead of Philadelphia right now: Tokyo is on JST (UTC+9) and Philadelphia on EDT (UTC-4). That changes on Sun, Nov 1, when clocks go back in Philadelphia: then Tokyo is 14 hours ahead of Philadelphia.
What is the best time to schedule a meeting between Philadelphia and Tokyo?: No time falls inside working hours (9 AM to 5 PM) in both cities. The closest is 9:00 AM in Philadelphia, which is 10:00 PM in Tokyo; consider splitting into two shorter meetings or shifting someone's hours.
Does Philadelphia observe daylight saving time?: Yes. Philadelphia is on EDT (UTC-4) now, and its clocks go back 1 hour on Sun, Nov 1, to EST (UTC-5).
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 Philadelphia?: 10:00 PM in Tokyo, on the same day.

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