Chicago PhiladelphiaTime Converter
Chicago (CDT, UTC−5) is currently 1 hour behind Philadelphia (EDT, UTC−4). Compare live clocks, convert any hour, and find times to meet.
Best time to meet between Chicago and Philadelphia
Best meeting times:
Chicago: 9:00 AM – 5:00 PM
Philadelphia: 10:00 AM – 6:00 PM
Quick answer
When it's in Chicago, it's the same day in Philadelphia.
Chicago (CST/CDT) runs 1 hour behind Philadelphia (EST/EDT). Both sides keep standard office hours with a real 9–6 overlap: the highlighted window above works for everyone.
- Time difference
- +1h 00m
- Chicago
- UTC−5
- Philadelphia
- UTC−4
- Best call window
- 9:00 AM CDT
Chicago to Philadelphia conversion table
The next 12 hours in Chicago and the matching local time in Philadelphia. The current hour is highlighted; drag the converter's slider and the table follows.
| Chicago · CDT | Philadelphia · EDT |
|---|---|
| NOW Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Thu, Aug 6 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
Fri, Aug 7 |
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Clocks in Chicago move back 1 hour to CST (UTC−6) on Sunday, November 1, 2026. Clocks in Philadelphia move back 1 hour to EST (UTC−5) on Sunday, November 1, 2026. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair: every combination is a live tool, not an article.
From Chicago
To Philadelphia
One source of truth, for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am Chicago time in Philadelphia?", it can cite the exact, DST-aware result, not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with time zone identifiers and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "Chicago → Philadelphia",
"url": "https://worldclock.pro/en/convert/chicago-to-philadelphia",
"from": {
"name": "Chicago",
"type": "city",
"abbreviation": "CST",
"daylightAbbreviation": "CDT",
"iana": "America/Chicago",
"standardUtcOffset": "-06:00",
"daylightUtcOffset": "-05:00",
"referenceCity": "Chicago"
},
"to": {
"name": "Philadelphia",
"type": "city",
"abbreviation": "EST",
"daylightAbbreviation": "EDT",
"iana": "America/New_York",
"standardUtcOffset": "-05:00",
"daylightUtcOffset": "-04:00",
"referenceCity": "Philadelphia"
},
"currentDifferenceMinutes": 60,
"possibleDifferencesMinutes": [
60
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between Chicago and Philadelphia?
Chicago is currently 1 hour behind Philadelphia. Chicago is on CDT (UTC−5) and Philadelphia is on EDT (UTC−4). The difference can change when either side starts or ends daylight saving time.
Is Philadelphia ahead of or behind Chicago?
Philadelphia is currently 1 hour ahead of Chicago.
When it is 9:00 AM in Chicago, what time is it in Philadelphia?
When it is 9:00 AM on a Thursday in Chicago, it is 10:00 AM in Philadelphia.
Do Chicago and Philadelphia observe daylight saving time?
Clocks in Chicago move back 1 hour to CST (UTC−6) on Sunday, November 1, 2026. Clocks in Philadelphia move back 1 hour to EST (UTC−5) on Sunday, November 1, 2026.
How do I convert Chicago time to Philadelphia time?
Add 1 hour to any time in Chicago to get the time in Philadelphia. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
More world clock & time zone apps
From the team behind worldclock.pro: global scheduling on iPhone & iPad, a Mac menu-bar clock, and precision Zulu/UTC for aviation, military, and HAM radio.
World Clock Master
Global time zone scheduling for international teams, travelers, and professionals who coordinate across cities and continents.
View app
World Clock Pro
An interactive world clock app for your Mac. 3x Apple Editor's Choice. Convert time across 160,000+ locations and time zones, schedule meetings. Access as a full screen app or a menu bar widget.
View app