CDT to EDT
+1hCDT
CDTSOURCEEDT
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and EDT on the World Map
The map below highlights the CDT (Central Daylight Time) and EDT (Eastern Daylight Time) timezone regions across the globe.
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.
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.
Time Conversion Guide: CDT to EDT
CDT runs on Central Daylight Time (CDT) at UTC-05:00. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts CDT 1 hour ahead of EDT — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in CDT it is 10:00 AM in EDT. Midnight in CDT is 1:00 AM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CDT to EDT time conversion table
| CDT (CDT) | EDT (EDT) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert CDT to EDT time
- Scheduling a call from CDT to EDT: a 10:00 AM start in CDT lands at 11:00 AM in EDT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CDT and EDT are inside the 9-to-5 working day between 9:00 AM and 4:00 PM CDT time (10:00 AM–5:00 PM EDT). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in CDT is 9:00 PM in EDT makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM CDT as the recurring meeting window if you work primarily from CDT and need EDT colleagues present.
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.
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.
Best time to call between CDT and EDT
Both CDT and EDT sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM CDT, which is 10:00 AM–5:00 PM EDT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CDT and EDT share 7 hours of working-hours overlap (9:00 AM–4:00 PM CDT), so scheduling a live meeting is straightforward.
CDT is 1 hour ahead of EDT (CDT UTC-05:00 → EDT UTC-04:00). The shared working window is 9:00 AM–4:00 PM CDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CDT
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
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 CDT and EDT?
CDT (CDT, UTC-05:00) is 1 hour ahead of EDT (EDT, UTC-04:00). The gap is currently +1h.
How do I convert CDT time to EDT time?
Add +1h to CDT local time. For example, 9:00 AM in CDT is 10:00 AM in EDT.
What time is it in EDT right now?
EDT uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from CDT.
What is the best time to call EDT from CDT?
Call between 9:00 AM and 4:00 PM CDT — that maps to 10:00 AM–5:00 PM EDT and keeps both parties inside the working day.
Which is ahead, CDT or EDT?
CDT is 1 hour ahead of EDT. When it is 12:00 PM in CDT it is 1:00 PM in EDT.
Does daylight saving time affect the CDT–EDT difference?
Neither zone observes daylight saving time, so the +1h offset between CDT and EDT is fixed all year.
Which other cities share CDT's time zone?
CDT also covers Chicago, Houston, Dallas, Austin, Winnipeg, Nashville.
Which countries use CDT, CDT's zone?
CDT is used in United States (Central), Canada (Manitoba).
Is there a day difference between CDT and EDT?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between CDT and EDT?
EDT is +1h from CDT.
What timezone is CDT in?
CDT operates on its local timezone.
What timezone is EDT in?
EDT operates on its local timezone.
Which countries use CDT (Central Daylight Time)?
CDT is used in United States (Central), Canada (Manitoba).
Does CDT observe daylight saving time?
Yes, CDT switches to CST during summer months.
What are some interesting facts about CDT?
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.
Which cities are in the EDT timezone?
Major cities in the EDT timezone include New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EDT?
Eastern Daylight Time (EDT) is at UTC-04:00. During daylight saving time, it shifts to EST.
What should I know about the EDT timezone?
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).
When is it midnight in CDT, what time is it in EDT?
When it is 12:00 AM (midnight) in CDT (CDT), it is +1h later in EDT (EDT).
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- new york to cdt
- london to cdt
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- tokyo to cdt
- singapore to cdt
- sydney to cdt
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- delhi to cdt
- mumbai to cdt
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See every conversion from CDT →·See every conversion from EDT →