Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

ICT to EDT

-11h

ICT

ICTSOURCE

UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

EDT

UTC-04:00☀ DST active

HH01

MM00

01:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

ICT

EDT

12:00 AM

1:00 PM-1

2:00 AM

3:00 PM-1

4:00 AM

5:00 PM-1

6:00 AM

7:00 PM-1

8:00 AM

9:00 PM-1

10:00 AM

11:00 PM-1

12:00 PM

1:00 AM

2:00 PM

3:00 AM

4:00 PM

5:00 AM

6:00 PM

7:00 AM

8:00 PM

9:00 AM

10:00 PM

11:00 AM

Green rows indicate typical business hours (9 AM - 5 PM)

ICT and EDT on the World Map

The map below highlights the ICT (Indochina Time) and EDT (Eastern Daylight Time) timezone regions across the globe.

ICT Zone

→

EDT Zone

Explore all world timezones interactively →

ICT – Indochina Time

UTC+07:00

Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.

Countries in ICT

ThailandVietnamCambodiaLaosIndonesia (WIB)

Major Cities in ICT

BangkokHo Chi Minh CityHanoiJakartaPhnom PenhVientiane

Key Facts about ICT

•Bangkok is one of the most visited cities in the world.
•ICT is 12 hours ahead of EST.
•Thailand, Vietnam, and Cambodia all share ICT.

Daylight Saving:No – UTC+07:00 year-round

Learn more about ICT on Wikipedia

EDT – Eastern Daylight Time

UTC-04:00

Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.

Countries in EDT

United States (Eastern)Canada (Ontario, Quebec)BahamasHaitiTurks and Caicos

Major Cities in EDT

New York CityWashington D.C.TorontoMiamiPhiladelphiaAtlantaBostonMontreal

Key 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).
•Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.

Daylight Saving:Yes – switches to EST

Learn more about EDT on Wikipedia

ICT to EDT Time Difference – Complete Guide

ICT runs on Indochina Time (ICT) at UTC+07:00. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts ICT 11 hours behind EDT — a difference of -11h at the current offsets.

In practice, when it is 9:00 AM in ICT it is 10:00 PM in EDT on the previous day. Midnight in ICT is 1:00 PM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

ICT to EDT time conversion table

ICT (ICT)	EDT (EDT)	Day
12:00 AM	1:00 PM	previous day
6:00 AM	7:00 PM	previous day
7:00 AM	8:00 PM	previous day
8:00 AM	9:00 PM	previous day
9:00 AM	10:00 PM	previous day
12:00 PM	1:00 AM	same day
3:00 PM	4:00 AM	same day
5:00 PM	6:00 AM	same day
6:00 PM	7:00 AM	same day
9:00 PM	10:00 AM	same day

Why people convert ICT to EDT time

Scheduling a call from ICT to EDT: a 10:00 AM start in ICT lands at 11:00 PM in EDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -11h gap: ICT and EDT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in EDT is 10:00 PM in ICT.
Keeping family and friends in sync: knowing that 8:00 PM in ICT is 9:00 AM in EDT makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -11h gap is not.
With a -11h gap there is no shared 9-to-5 window, so alternate the early start: one week ICT takes the early slot, the next week EDT does.

About ICT (Indochina Time)

Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving time.

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 ICT and EDT

With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. EDT opens at 9:00 AM EDT, which is 10:00 PM in ICT, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

ICT and EDT have no shared working hours because of the -11h gap. Teams need to alternate early starts or rely on asynchronous handovers.

ICT is 11 hours behind EDT (ICT UTC+07:00 → EDT UTC-04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

ICT

Does not observe DST

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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between ICT and EDT?

ICT (ICT, UTC+07:00) is 11 hours behind EDT (EDT, UTC-04:00). The gap is currently -11h.

How do I convert ICT time to EDT time?

Add -11h to ICT local time. For example, 9:00 AM in ICT is 10:00 PM in EDT (previous day).

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 -11h offset from ICT.

What is the best time to call EDT from ICT?

There is no shared working-hours window because of the -11h gap. The closest option is 1:00 PM in ICT, which is 2:00 AM in EDT.

Which is behind, ICT or EDT?

ICT is 11 hours behind EDT. When it is 12:00 PM in ICT it is 1:00 AM in EDT.

Does daylight saving time affect the ICT–EDT difference?

Neither zone observes daylight saving time, so the -11h offset between ICT and EDT is fixed all year.

Which other cities share ICT's time zone?

ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.

Which countries use ICT, ICT's zone?

ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).

Is there a day difference between ICT and EDT?

Not normally. The -11h gap only pushes the date over the previous day.

What is the time difference between ICT and EDT?

EDT is -11h from ICT.

What timezone is ICT in?

ICT operates on its local timezone.

What timezone is EDT in?

EDT operates on its local timezone.

Which countries use ICT (Indochina Time)?

ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).

Does ICT observe daylight saving time?

No, ICT does not observe daylight saving time and remains at UTC+07:00 year-round.

What are some interesting facts about ICT?

Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.

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).