ICT to GST
-3hICT
ICTSOURCEGST
GSTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and GST on the World Map
The map below highlights the ICT (Indochina Time) and GST (Gulf Standard Time) timezone regions across the globe.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •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.
GST – Gulf Standard Time
UTC+04:00Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.
- •Dubai uses GST year-round with no daylight saving time.
- •GST is 9 hours ahead of EST and 4 hours ahead of GMT.
- •The Dubai Financial Market (DFM) operates on GST.
Time Conversion Guide: ICT to GST
ICT runs on Indochina Time (ICT) at UTC+07:00. GST runs on Gulf Standard Time (GST) at UTC+04:00. That puts ICT 3 hours behind GST — a difference of -3h at the current offsets.
In practice, when it is 9:00 AM in ICT it is 6:00 AM in GST. Midnight in ICT is 9:00 PM in GST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
ICT to GST time conversion table
| ICT (ICT) | GST (GST) | Day |
|---|---|---|
| 12:00 AM | 9:00 PM | previous day |
| 6:00 AM | 3:00 AM | same day |
| 7:00 AM | 4:00 AM | same day |
| 8:00 AM | 5:00 AM | same day |
| 9:00 AM | 6:00 AM | same day |
| 12:00 PM | 9:00 AM | same day |
| 3:00 PM | 12:00 PM | same day |
| 5:00 PM | 2:00 PM | same day |
| 6:00 PM | 3:00 PM | same day |
| 9:00 PM | 6:00 PM | same day |
Why people convert ICT to GST time
- Scheduling a call from ICT to GST: a 10:00 AM start in ICT lands at 7:00 AM in GST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both ICT and GST are inside the 9-to-5 working day between 12:00 PM and 5:00 PM ICT time (9:00 AM–2:00 PM GST). That is roughly 5 hours of usable overlap.
- Booking travel or deliveries: tracking GST local time against ICT keeps pickup windows and arrival estimates honest across the -3h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -3h gap is not.
- Block 12:00 PM–5:00 PM ICT as the recurring meeting window if you work primarily from ICT and need GST colleagues present.
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 GST (Gulf Standard Time)
Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.
Best time to call between ICT and GST
Both ICT and GST sit inside the 9 AM – 5 PM working day between 12:00 PM–5:00 PM ICT, which is 9:00 AM–2:00 PM GST. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
ICT and GST share 5 hours of working-hours overlap (12:00 PM–5:00 PM ICT), so scheduling a live meeting is straightforward.
ICT is 3 hours behind GST (ICT UTC+07:00 → GST UTC+04:00). The shared working window is 12:00 PM–5:00 PM ICT. Remember to re-check around daylight-saving transitions.
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 ICT and GST?
ICT (ICT, UTC+07:00) is 3 hours behind GST (GST, UTC+04:00). The gap is currently -3h.
How do I convert ICT time to GST time?
Add -3h to ICT local time. For example, 9:00 AM in ICT is 6:00 AM in GST.
What time is it in GST right now?
GST uses GST at UTC+04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -3h offset from ICT.
What is the best time to call GST from ICT?
Call between 12:00 PM and 5:00 PM ICT — that maps to 9:00 AM–2:00 PM GST and keeps both parties inside the working day.
Which is behind, ICT or GST?
ICT is 3 hours behind GST. When it is 12:00 PM in ICT it is 9:00 AM in GST.
Does daylight saving time affect the ICT–GST difference?
Neither zone observes daylight saving time, so the -3h offset between ICT and GST 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 GST?
Not normally. The -3h gap only pushes the date over the previous day.
What is the time difference between ICT and GST?
GST is -3h from ICT.
What timezone is ICT in?
ICT operates on its local timezone.
What timezone is GST in?
GST 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 GST timezone?
Major cities in the GST timezone include Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.
What is the UTC offset for GST?
Gulf Standard Time (GST) is at UTC+04:00.
What should I know about the GST timezone?
Dubai uses GST year-round with no daylight saving time. GST is 9 hours ahead of EST and 4 hours ahead of GMT.
When is it midnight in ICT, what time is it in GST?
When it is 12:00 AM (midnight) in ICT (ICT), it is -3h later in GST (GST).
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