EDT to CDT
-1hEDT
EDTSOURCECDT
CDTGreen rows indicate typical business hours (9 AM - 5 PM)
EDT and CDT on the World Map
The map below highlights the EDT (Eastern Daylight Time) and CDT (Central Daylight Time) timezone regions across the globe.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
CDT – Central Daylight Time
UTC-05:00Central Daylight Time (CDT) is the daylight saving offset in the Central Time Zone, 5 hours behind UTC.
- •CDT is the same offset as EST (UTC-05:00), which can cause confusion.
- •CDT runs from the second Sunday in March to the first Sunday in November.
Understanding the -1h Gap: EDT vs CDT
EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. CDT runs on Central Daylight Time (CDT) at UTC-05:00. That puts EDT 1 hour behind CDT — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in EDT it is 8:00 AM in CDT. Midnight in EDT is 11:00 PM in CDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EDT to CDT time conversion table
| EDT (EDT) | CDT (CDT) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert EDT to CDT time
- Scheduling a call from EDT to CDT: a 10:00 AM start in EDT lands at 9:00 AM in CDT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both EDT and CDT are inside the 9-to-5 working day between 10:00 AM and 5:00 PM EDT time (9:00 AM–4:00 PM CDT). That is roughly 7 hours of usable overlap.
- Watching a live event or market open: EDT viewers need 8:00 AM in CDT to catch a 9:00 AM start there, and 1:00 AM if the event is anchored to EDT.
- Always state the zone abbreviation, not just the hour. "3:00 PM EDT" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM EDT as the recurring meeting window if you work primarily from EDT and need CDT colleagues present.
About EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
About CDT (Central Daylight Time)
Central Daylight Time (CDT) is observed during summer months in the US and Canadian portions of the Central Time Zone. Clocks are moved forward by one hour, aligning with Eastern Standard Time (EST). Most of Mexico and Central America do not observe CDT, staying on CST year-round.
Best time to call between EDT and CDT
Both EDT and CDT sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM EDT, which is 9:00 AM–4:00 PM CDT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
EDT and CDT share 7 hours of working-hours overlap (10:00 AM–5:00 PM EDT), so scheduling a live meeting is straightforward.
EDT is 1 hour behind CDT (EDT UTC-04:00 → CDT UTC-05:00). The shared working window is 10:00 AM–5:00 PM EDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
CDT
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between EDT and CDT?
EDT (EDT, UTC-04:00) is 1 hour behind CDT (CDT, UTC-05:00). The gap is currently -1h.
How do I convert EDT time to CDT time?
Add -1h to EDT local time. For example, 9:00 AM in EDT is 8:00 AM in CDT.
What time is it in CDT right now?
CDT uses CDT at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h offset from EDT.
What is the best time to call CDT from EDT?
Call between 10:00 AM and 5:00 PM EDT — that maps to 9:00 AM–4:00 PM CDT and keeps both parties inside the working day.
Which is behind, EDT or CDT?
EDT is 1 hour behind CDT. When it is 12:00 PM in EDT it is 11:00 AM in CDT.
Does daylight saving time affect the EDT–CDT difference?
Neither zone observes daylight saving time, so the -1h offset between EDT and CDT is fixed all year.
Which other cities share EDT's time zone?
EDT also covers New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
Which countries use EDT, EDT's zone?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.
Is there a day difference between EDT and CDT?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between EDT and CDT?
CDT is -1h from EDT.
What timezone is EDT in?
EDT operates on its local timezone.
What timezone is CDT in?
CDT operates on its local timezone.
Which countries use EDT (Eastern Daylight Time)?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.
Does EDT observe daylight saving time?
Yes, EDT switches to EST during summer months.
What are some interesting facts about EDT?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
Which cities are in the CDT timezone?
Major cities in the CDT timezone include Chicago, Houston, Dallas, Austin, Winnipeg, Nashville.
What is the UTC offset for CDT?
Central Daylight Time (CDT) is at UTC-05:00. During daylight saving time, it shifts to CST.
What should I know about the CDT timezone?
CDT is the same offset as EST (UTC-05:00), which can cause confusion. CDT runs from the second Sunday in March to the first Sunday in November.
When is it midnight in EDT, what time is it in CDT?
When it is 12:00 AM (midnight) in EDT (EDT), it is -1h later in CDT (CDT).
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See every conversion from EDT →·See every conversion from CDT →