CAT to Vietnam
+5hCAT
CATSOURCEVietnam
ICTGreen rows indicate typical business hours (9 AM - 5 PM)
CAT and ICT on the World Map
The map below highlights the CAT (Central Africa Time) and ICT (Indochina Time) timezone regions across the globe.
CAT – Central Africa Time
UTC+02:00Central Africa Time (CAT, UTC+02:00) covers Zimbabwe, Zambia, Mozambique, Malawi and neighbouring countries.
- •Central Africa Time is fixed at UTC+02:00 with no daylight saving.
- •CAT matches South Africa Standard Time (SAST) all year.
- •It is the same offset as Central European Time in winter.
- •Harare is level with Johannesburg and one hour ahead of Lagos.
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.
CAT vs Vietnam: Offsets, DST and Best Call Times
CAT runs on Central Africa Time (CAT) at UTC+02:00. Vietnam runs on Indochina Time (ICT) at UTC+07:00. That puts CAT 5 hours ahead of Vietnam — a difference of +5h at the current offsets.
In practice, when it is 9:00 AM in CAT it is 2:00 PM in Vietnam. Midnight in CAT is 5:00 AM in Vietnam. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CAT to Vietnam time conversion table
| CAT (CAT) | Vietnam (ICT) | Day |
|---|---|---|
| 12:00 AM | 5:00 AM | same day |
| 6:00 AM | 11:00 AM | same day |
| 7:00 AM | 12:00 PM | same day |
| 8:00 AM | 1:00 PM | same day |
| 9:00 AM | 2:00 PM | same day |
| 12:00 PM | 5:00 PM | same day |
| 3:00 PM | 8:00 PM | same day |
| 5:00 PM | 10:00 PM | same day |
| 6:00 PM | 11:00 PM | same day |
| 9:00 PM | 2:00 AM | next day |
Why people convert CAT to Vietnam time
- Scheduling a call from CAT to Vietnam: a 10:00 AM start in CAT lands at 3:00 PM in Vietnam, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CAT and Vietnam are inside the 9-to-5 working day between 9:00 AM and 12:00 PM CAT time (2:00 PM–5:00 PM ICT). That is roughly 3 hours of usable overlap.
- Watching a live event or market open: CAT viewers need 2:00 PM in Vietnam to catch a 9:00 AM start there, and 7:00 PM if the event is anchored to CAT.
- Always state the zone abbreviation, not just the hour. "3:00 PM CAT" is unambiguous; "3 PM" across a +5h gap is not.
- Block 9:00 AM–12:00 PM CAT as the recurring meeting window if you work primarily from CAT and need Vietnam colleagues present.
About CAT (Central Africa Time)
Central Africa Time (CAT) is fixed at UTC+02:00 all year across a broad belt of southern and central Africa, including Zimbabwe, Zambia, Mozambique, Malawi, Rwanda, Burundi and the eastern Democratic Republic of the Congo. None of these countries observes daylight saving time, so CAT never shifts. It is the same offset as South Africa Standard Time (SAST) and the winter version of Central European Time, which makes CAT a convenient bridge between African, European and Middle Eastern schedules — Harare is level with Johannesburg all year and one hour ahead of Lagos.
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.
Best time to call between CAT and Vietnam
Both CAT and Vietnam sit inside the 9 AM – 5 PM working day between 9:00 AM–12:00 PM CAT, which is 2:00 PM–5:00 PM ICT. That gives roughly 3 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CAT and Vietnam overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.
CAT is 5 hours ahead of Vietnam (CAT UTC+02:00 → ICT UTC+07:00). The shared working window is 9:00 AM–12:00 PM CAT. 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 CAT and Vietnam?
CAT (CAT, UTC+02:00) is 5 hours ahead of Vietnam (ICT, UTC+07:00). The gap is currently +5h.
How do I convert CAT time to Vietnam time?
Add +5h to CAT local time. For example, 9:00 AM in CAT is 2:00 PM in Vietnam.
What time is it in Vietnam right now?
Vietnam uses ICT at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +5h offset from CAT.
What is the best time to call Vietnam from CAT?
Call between 9:00 AM and 12:00 PM CAT — that maps to 2:00 PM–5:00 PM ICT and keeps both parties inside the working day.
Which is ahead, CAT or Vietnam?
CAT is 5 hours ahead of Vietnam. When it is 12:00 PM in CAT it is 5:00 PM in Vietnam.
Do CAT and Vietnam use different time zones?
CAT uses CAT at UTC+02:00, while Vietnam (Vietnam) uses ICT at UTC+07:00. The IANA identifiers are Africa/Harare and Asia/Ho_Chi_Minh.
Does daylight saving time affect the CAT–Vietnam difference?
Neither zone observes daylight saving time, so the +5h offset between CAT and Vietnam is fixed all year.
Which other cities share CAT's time zone?
CAT also covers Harare, Lusaka, Maputo, Lilongwe, Kigali.
Which countries use CAT, CAT's zone?
CAT is used in Zimbabwe, Zambia, Mozambique, Malawi, Rwanda, Burundi, DR Congo (east).
Is there a day difference between CAT and Vietnam?
Not normally. The +5h gap only pushes the date over for late-evening times.
What is the time difference between CAT and Vietnam?
Vietnam is +5h from CAT.
What timezone is CAT in?
CAT operates on its local timezone.
What timezone is Vietnam in?
Vietnam operates on its local timezone.
Which countries use CAT (Central Africa Time)?
CAT is used in Zimbabwe, Zambia, Mozambique, Malawi, Rwanda, Burundi, and 1 more countries.
Does CAT observe daylight saving time?
No, CAT does not observe daylight saving time and remains at UTC+02:00 year-round.
What are some interesting facts about CAT?
Central Africa Time is fixed at UTC+02:00 with no daylight saving. CAT matches South Africa Standard Time (SAST) all year.
Which cities are in the ICT timezone?
Major cities in the ICT timezone include Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
What is the UTC offset for ICT?
Indochina Time (ICT) is at UTC+07:00.
What should I know about the ICT timezone?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
When is it midnight in CAT, what time is it in Vietnam?
When it is 12:00 AM (midnight) in CAT (CAT), it is +5h later in Vietnam (ICT).
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