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 MDT

-13h

ICT

ICTSOURCE

UTC+07:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

MDT

UTC-06:00☀ DST active

HH11

MM00

(previous day)23:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

ICT

MDT

12:00 AM

11:00 AM-1

2:00 AM

1:00 PM-1

4:00 AM

3:00 PM-1

6:00 AM

5:00 PM-1

8:00 AM

7:00 PM-1

10:00 AM

9:00 PM-1

12:00 PM

11:00 PM-1

2:00 PM

1:00 AM

4:00 PM

3:00 AM

6:00 PM

5:00 AM

8:00 PM

7:00 AM

10:00 PM

9:00 AM

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

ICT and MDT on the World Map

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

ICT Zone

→

MDT 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

MDT – Mountain Daylight Time

UTC-06:00

Mountain Daylight Time (MDT) is the daylight saving offset in the Mountain Time Zone, 6 hours behind UTC.

Countries in MDT

United States (Mountain)Canada (Alberta)

Major Cities in MDT

DenverCalgaryEdmontonSalt Lake CityBoise

Key Facts about MDT

•MDT shares the same offset as CST (UTC-06:00).
•Arizona does not switch to MDT, remaining on MST.

Daylight Saving:Yes – switches to MST

Learn more about MDT on Wikipedia

ICT to MDT Time Difference – Complete Guide

ICT runs on Indochina Time (ICT) at UTC+07:00. MDT runs on Mountain Daylight Time (MDT) at UTC-06:00. That puts ICT 13 hours behind MDT — a difference of -13h at the current offsets.

In practice, when it is 9:00 AM in ICT it is 8:00 PM in MDT on the previous day. Midnight in ICT is 11:00 AM in MDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

ICT to MDT time conversion table

ICT (ICT)	MDT (MDT)	Day
12:00 AM	11:00 AM	previous day
6:00 AM	5:00 PM	previous day
7:00 AM	6:00 PM	previous day
8:00 AM	7:00 PM	previous day
9:00 AM	8:00 PM	previous day
12:00 PM	11:00 PM	previous day
3:00 PM	2:00 AM	same day
5:00 PM	4:00 AM	same day
6:00 PM	5:00 AM	same day
9:00 PM	8:00 AM	same day

Why people convert ICT to MDT time

Scheduling a call from ICT to MDT: a 10:00 AM start in ICT lands at 9:00 PM in MDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -13h gap: ICT and MDT 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 MDT is 8:00 PM in ICT.
Watching a live event or market open: ICT viewers need 8:00 PM in MDT to catch a 9:00 AM start there, and 1:00 PM if the event is anchored to ICT.

Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -13h gap is not.
With a -13h gap there is no shared 9-to-5 window, so alternate the early start: one week ICT takes the early slot, the next week MDT 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 MDT (Mountain Daylight Time)

Mountain Daylight Time (MDT) is observed during summer months in the Mountain Time Zone, except in Arizona which stays on MST year-round. MDT aligns with Central Standard Time (CST) at UTC-06:00.

Best time to call between ICT and MDT

With a -13h offset there is no overlap inside a normal 9 AM – 5 PM day. MDT opens at 9:00 AM MDT, which is 8:00 PM in ICT, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

ICT and MDT have no shared working hours because of the -13h gap. Teams need to alternate early starts or rely on asynchronous handovers.

ICT is 13 hours behind MDT (ICT UTC+07:00 → MDT UTC-06:00). 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

MDT

☀ Currently in DST

Standard: UTC-07:00 · DST: UTC-06:00

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 MDT?

ICT (ICT, UTC+07:00) is 13 hours behind MDT (MDT, UTC-06:00). The gap is currently -13h.

How do I convert ICT time to MDT time?

Add -13h to ICT local time. For example, 9:00 AM in ICT is 8:00 PM in MDT (previous day).

What time is it in MDT right now?

MDT uses MDT at UTC-06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h offset from ICT.