CAT to GMT
-2hCAT
CATSOURCEGMT
GMTGreen rows indicate typical business hours (9 AM - 5 PM)
CAT and GMT on the World Map
The map below highlights the CAT (Central Africa Time) and GMT (Greenwich Mean 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.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
Understanding the -2h Gap: CAT vs GMT
CAT runs on Central Africa Time (CAT) at UTC+02:00. GMT runs on Greenwich Mean Time (GMT) at UTC+00:00. That puts CAT 2 hours behind GMT — a difference of -2h at the current offsets.
In practice, when it is 9:00 AM in CAT it is 7:00 AM in GMT. Midnight in CAT is 10:00 PM in GMT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CAT to GMT time conversion table
| CAT (CAT) | GMT (GMT) | Day |
|---|---|---|
| 12:00 AM | 10:00 PM | previous day |
| 6:00 AM | 4:00 AM | same day |
| 7:00 AM | 5:00 AM | same day |
| 8:00 AM | 6:00 AM | same day |
| 9:00 AM | 7:00 AM | same day |
| 12:00 PM | 10:00 AM | same day |
| 3:00 PM | 1:00 PM | same day |
| 5:00 PM | 3:00 PM | same day |
| 6:00 PM | 4:00 PM | same day |
| 9:00 PM | 7:00 PM | same day |
Why people convert CAT to GMT time
- Scheduling a call from CAT to GMT: a 10:00 AM start in CAT lands at 8:00 AM in GMT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CAT and GMT are inside the 9-to-5 working day between 11:00 AM and 5:00 PM CAT time (9:00 AM–3:00 PM GMT). That is roughly 6 hours of usable overlap.
- Booking travel or deliveries: tracking GMT local time against CAT keeps pickup windows and arrival estimates honest across the -2h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM CAT" is unambiguous; "3 PM" across a -2h gap is not.
- Block 11:00 AM–5:00 PM CAT as the recurring meeting window if you work primarily from CAT and need GMT 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 GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between CAT and GMT
Both CAT and GMT sit inside the 9 AM – 5 PM working day between 11:00 AM–5:00 PM CAT, which is 9:00 AM–3:00 PM GMT. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CAT and GMT share 6 hours of working-hours overlap (11:00 AM–5:00 PM CAT), so scheduling a live meeting is straightforward.
CAT is 2 hours behind GMT (CAT UTC+02:00 → GMT UTC+00:00). The shared working window is 11:00 AM–5:00 PM CAT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CAT
Does not observe DST
GMT
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 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 CAT and GMT?
CAT (CAT, UTC+02:00) is 2 hours behind GMT (GMT, UTC+00:00). The gap is currently -2h.
How do I convert CAT time to GMT time?
Add -2h to CAT local time. For example, 9:00 AM in CAT is 7:00 AM in GMT.
What time is it in GMT right now?
GMT uses GMT at UTC+00:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h offset from CAT.
What is the best time to call GMT from CAT?
Call between 11:00 AM and 5:00 PM CAT — that maps to 9:00 AM–3:00 PM GMT and keeps both parties inside the working day.
Which is behind, CAT or GMT?
CAT is 2 hours behind GMT. When it is 12:00 PM in CAT it is 10:00 AM in GMT.
Does daylight saving time affect the CAT–GMT difference?
Neither zone observes daylight saving time, so the -2h offset between CAT and GMT 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 GMT?
Not normally. The -2h gap only pushes the date over the previous day.
What is the time difference between CAT and GMT?
GMT is -2h from CAT.
What timezone is CAT in?
CAT operates on its local timezone.
What timezone is GMT in?
GMT 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 GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in CAT, what time is it in GMT?
When it is 12:00 AM (midnight) in CAT (CAT), it is -2h later in GMT (GMT).
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