Philadelphia HoustonTime Converter
Philadelphia (EDT, UTC−4) is currently 1 hour ahead of Houston (CDT, UTC−5). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in Philadelphia, it's the same day in Houston.
Philadelphia (EST/EDT) runs 1 hour ahead of Houston (CST/CDT). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- −1h 00m
- Philadelphia
- UTC−4
- Houston
- UTC−5
- Best call window
- 10:00 AM EDT
Philadelphia to Houston conversion table
The next 12 hours in Philadelphia and the matching local time in Houston. The current hour is highlighted; drag the converter's slider and the table follows.
| Philadelphia · EDT | Houston · CDT |
|---|---|
| NOW Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Best time to meet between Philadelphia & Houston
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Clocks in Philadelphia move back 1 hour to EST (UTC−5) on Sunday, November 1, 2026. Clocks in Houston move back 1 hour to CST (UTC−6) 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 Philadelphia
To Houston
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 Philadelphia time in Houston?", 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 IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "Philadelphia → Houston",
"url": "https://worldclock.pro/en/convert/philadelphia-to-houston",
"from": {
"name": "Philadelphia",
"type": "city",
"abbreviation": "EST",
"daylightAbbreviation": "EDT",
"iana": "America/New_York",
"standardUtcOffset": "-05:00",
"daylightUtcOffset": "-04:00",
"referenceCity": "Philadelphia"
},
"to": {
"name": "Houston",
"type": "city",
"abbreviation": "CST",
"daylightAbbreviation": "CDT",
"iana": "America/Chicago",
"standardUtcOffset": "-06:00",
"daylightUtcOffset": "-05:00",
"referenceCity": "Houston"
},
"currentDifferenceMinutes": -60,
"possibleDifferencesMinutes": [
-60
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between Philadelphia and Houston?
Philadelphia is currently 1 hour ahead of Houston. Philadelphia is on EDT (UTC−4) and Houston is on CDT (UTC−5). The difference can change when either side starts or ends daylight saving time.
Is Houston ahead of or behind Philadelphia?
Houston is currently 1 hour behind Philadelphia.
When it is 9:00 AM in Philadelphia, what time is it in Houston?
When it is 9:00 AM on a Monday in Philadelphia, it is 8:00 AM in Houston.
Do Philadelphia and Houston observe daylight saving time?
Clocks in Philadelphia move back 1 hour to EST (UTC−5) on Sunday, November 1, 2026. Clocks in Houston move back 1 hour to CST (UTC−6) on Sunday, November 1, 2026.
How do I convert Philadelphia time to Houston time?
Subtract 1 hour from any time in Philadelphia to get the time in Houston. 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
The same powerful time zone converter, meeting scheduler, and world clock — living in your Mac's menu bar.
View app