Does Chicago observe daylight saving time?

Yes. Chicago is on CDT (UTC-5) now, and its clocks go back 1 hour on Sun, Nov 1, to CST (UTC-6).

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).

What time is it in Philadelphia when it's 9 AM in Chicago?

10:00 AM in Philadelphia, on the same day.

Chicago to Philadelphia Meeting Planner

Philadelphia is 1 hour ahead of Chicago right now. Their working days overlap for 7 hours today.

Chicago · United States

8:39 AM

Sat, Oct 17 · CDT · summer time

Philadelphia · United States

9:39 AM

Sat, Oct 17 · EDT · summer time

Best Meeting Times Between Chicago and Philadelphia

9:00 AM to 4:00 PM in Chicago (10:00 AM to 5:00 PM in Philadelphia). That's when both cities are inside working hours, 9 AM to 5 PM, giving 7 hours of overlap today.

Who's meeting

2 of 4 places

ChicagoOrganizerUnited States ·· summer time8:39AMnow
PhiladelphiaUnited States ·· summer time9:39AMnow

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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 Chicago

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in Chicago time.

1:00PMBest · OptimalWorking hours in Chicago (13:00) and Philadelphia (14:00).
12:00PMOption 2 · OptimalWorking hours in Chicago (12:00) and Philadelphia (13:00).
2:00PMOption 3 · OptimalWorking hours in Chicago (14:00) and Philadelphia (15:00).

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

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

Your meeting

Chicago1:00 PM CDTSat, Oct 17
Philadelphia2:00 PM EDTSat, Oct 17
UTC2026-10-17 18:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Chicago and Philadelphia

Philadelphia is 1 hour ahead of Chicago right now: Philadelphia is on EDT (UTC-4) and Chicago on CDT (UTC-5). That changes on Sun, Nov 1, when clocks go back in Philadelphia: then Philadelphia and Chicago are on the same time.

Time difference between Chicago and Philadelphia over the next 12 months
From	Difference	Why
Now	Philadelphia 1 hour ahead	—
Sun, Nov 1	Same time	Clocks go back in Philadelphia
Sun, Nov 1	Philadelphia 1 hour ahead	Clocks go back in Chicago
Sun, Mar 14, 2027	Philadelphia 2 hours ahead	Clocks go forward in Philadelphia
Sun, Mar 14, 2027	Philadelphia 1 hour ahead	Clocks go forward in Chicago

Chicago is on Central Standard Time. Philadelphia is on Eastern Standard Time.

Frequently Asked Questions: Chicago & Philadelphia Scheduling

What is the time difference between Chicago and Philadelphia?: Philadelphia is 1 hour ahead of Chicago right now: Philadelphia is on EDT (UTC-4) and Chicago on CDT (UTC-5). That changes on Sun, Nov 1, when clocks go back in Philadelphia: then Philadelphia and Chicago are on the same time.
What is the best time to schedule a meeting between Chicago and Philadelphia?: 9:00 AM to 4:00 PM in Chicago (10:00 AM to 5:00 PM in Philadelphia). That's when both cities are inside working hours, 9 AM to 5 PM, giving 7 hours of overlap today.
Does Chicago observe daylight saving time?: Yes. Chicago is on CDT (UTC-5) now, and its clocks go back 1 hour on Sun, Nov 1, to CST (UTC-6).
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).
What time is it in Philadelphia when it's 9 AM in Chicago?: 10:00 AM in Philadelphia, on the same day.

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