Istanbul to CAT
-1hIstanbul
TRTSOURCECAT
CATGreen rows indicate typical business hours (9 AM - 5 PM)
TRT and CAT on the World Map
The map below highlights the TRT (Turkey Time) and CAT (Central Africa Time) timezone regions across the globe.
TRT – Turkey Time
UTC+03:00Turkey Time (TRT, UTC+03:00) is the single time zone used across Turkey, fixed year round since 2016.
- •Turkey has used a permanent UTC+03:00 since September 2016.
- •TRT is level with Moscow Standard Time and Arabia Standard Time all year.
- •Because Turkey kept summer time permanently, western cities see very late winter sunrises.
- •Turkey previously observed daylight saving time from 1973 to 2016.
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.
About Istanbul
WikipediaIstanbul operates on Turkey Time (TRT), UTC+3 year-round. As a transcontinental city, Istanbul bridges European and Asian business hours.
The Grand Bazaar is one of the world's oldest and largest covered markets with 4,000+ shops.
Istanbul vs CAT: Offsets, DST and Best Call Times
Istanbul runs on Türkiye Standard Time (TRT) at UTC+03:00. CAT runs on Central Africa Time (CAT) at UTC+02:00. That puts Istanbul 1 hour behind CAT — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in Istanbul it is 8:00 AM in CAT. Midnight in Istanbul is 11:00 PM in CAT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Istanbul to CAT time conversion table
| Istanbul (TRT) | CAT (CAT) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert Istanbul to CAT time
- Scheduling a call from Istanbul to CAT: a 10:00 AM start in Istanbul lands at 9:00 AM in CAT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Istanbul and CAT are inside the 9-to-5 working day between 10:00 AM and 5:00 PM TRT time (9:00 AM–4:00 PM CAT). That is roughly 7 hours of usable overlap.
- Watching a live event or market open: Istanbul viewers need 8:00 AM in CAT to catch a 9:00 AM start there, and 1:00 AM if the event is anchored to Istanbul.
- Always state the zone abbreviation, not just the hour. "3:00 PM TRT" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM TRT as the recurring meeting window if you work primarily from Istanbul and need CAT colleagues present.
About TRT (Turkey Time)
Turkey Time (TRT) is fixed at UTC+03:00 all year. Turkey abolished seasonal clock changes in September 2016, moving to a permanent UTC+03:00 so the whole country stays on what was formerly summer time. That leaves Istanbul, which sits close to 29°E, on an offset well ahead of its solar time — sunrise in mid-winter comes after 08:30 local. TRT shares its offset with Moscow Standard Time, Arabia Standard Time and East Africa Time, so Istanbul is level with Moscow and Riyadh all year and one hour ahead of Central European Time during the European winter.
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.
Best time to call between Istanbul and CAT
Both Istanbul and CAT sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM TRT, which is 9:00 AM–4:00 PM CAT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Istanbul and CAT share 7 hours of working-hours overlap (10:00 AM–5:00 PM TRT), so scheduling a live meeting is straightforward.
Istanbul is 1 hour behind CAT (TRT UTC+03:00 → CAT UTC+02:00). The shared working window is 10:00 AM–5:00 PM TRT. 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 Istanbul and CAT?
Istanbul (TRT, UTC+03:00) is 1 hour behind CAT (CAT, UTC+02:00). The gap is currently -1h.
How do I convert Istanbul time to CAT time?
Add -1h to Istanbul local time. For example, 9:00 AM in Istanbul is 8:00 AM in CAT.
What time is it in CAT right now?
CAT uses CAT at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h offset from Istanbul.
What is the best time to call CAT from Istanbul?
Call between 10:00 AM and 5:00 PM TRT — that maps to 9:00 AM–4:00 PM CAT and keeps both parties inside the working day.
Which is behind, Istanbul or CAT?
Istanbul is 1 hour behind CAT. When it is 12:00 PM in Istanbul it is 11:00 AM in CAT.
Do Istanbul and CAT use different time zones?
Istanbul (Turkey) uses TRT at UTC+03:00, while CAT uses CAT at UTC+02:00. The IANA identifiers are Europe/Istanbul and Africa/Harare.
Does daylight saving time affect the Istanbul–CAT difference?
Neither zone observes daylight saving time, so the -1h offset between Istanbul and CAT is fixed all year.
Which other cities share Istanbul's time zone?
TRT also covers Istanbul, Ankara, Izmir, Bursa, Antalya.
Which countries use TRT, Istanbul's zone?
TRT is used in Turkey.
Is there a day difference between Istanbul and CAT?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between Istanbul and CAT?
CAT is -1h from Istanbul.
What timezone is Istanbul in?
Istanbul operates on Turkey Time (TRT), UTC+3 year-round. As a transcontinental city, Istanbul bridges European and Asian business hours.
What timezone is CAT in?
CAT operates on its local timezone.
What are the business hours in Istanbul?
Standard business hours in Istanbul are 9:00 AM - 6:00 PM TRT.
Which countries use TRT (Turkey Time)?
TRT is used in Turkey.
Does TRT observe daylight saving time?
No, TRT does not observe daylight saving time and remains at UTC+03:00 year-round.
What are some interesting facts about TRT?
Turkey has used a permanent UTC+03:00 since September 2016. TRT is level with Moscow Standard Time and Arabia Standard Time all year.
Which cities are in the CAT timezone?
Major cities in the CAT timezone include Harare, Lusaka, Maputo, Lilongwe, Kigali.
What is the UTC offset for CAT?
Central Africa Time (CAT) is at UTC+02:00.
What should I know about the CAT timezone?
Central Africa Time is fixed at UTC+02:00 with no daylight saving. CAT matches South Africa Standard Time (SAST) all year.
When is it midnight in Istanbul, what time is it in CAT?
When it is 12:00 AM (midnight) in Istanbul (TRT), it is -1h later in CAT (CAT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Istanbul time conversions
- istanbul to trt
- istanbul to turkey
- istanbul to london
- istanbul to dublin
- istanbul to paris
- istanbul to berlin
- istanbul to amsterdam
- istanbul to madrid
- istanbul to rome
- istanbul to zurich
- istanbul to stockholm
- istanbul to moscow
- istanbul to lisbon
- istanbul to warsaw
- istanbul to new york
- istanbul to dubai
- istanbul to tokyo
- istanbul to singapore
- istanbul to sydney
- istanbul to los angeles
- istanbul to delhi
- istanbul to mumbai
- istanbul to hong kong
- istanbul to toronto
- istanbul to kathmandu
- new york to istanbul
- london to istanbul
- dubai to istanbul
- tokyo to istanbul
- singapore to istanbul
- sydney to istanbul
- los angeles to istanbul
- paris to istanbul
- delhi to istanbul
- mumbai to istanbul
- berlin to istanbul
See every conversion from Istanbul →·See every conversion from CAT →