CAT to Delhi
+3h 30mCAT
CATSOURCEDelhi
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
CAT and IST on the World Map
The map below highlights the CAT (Central Africa Time) and IST (India Standard 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.
IST – India Standard Time
UTC+05:30India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.
- •India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
- •India uses a single time zone despite spanning 30° of longitude.
- •IST is one of only a handful of time zones with a 30-minute offset.
- •IST is the most populous single time zone in the world with over 1.4 billion people.
- •The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.
About Delhi
WikipediaDelhi operates on India Standard Time (IST), UTC+5:30. As India's capital, Delhi time is synchronized with Mumbai and India's National Stock Exchange.
Delhi serves as India's political capital while Mumbai is the financial capital.
CAT vs Delhi: Offsets, DST and Best Call Times
CAT runs on Central Africa Time (CAT) at UTC+02:00. Delhi runs on India Standard Time (IST) at UTC+05:30. That puts CAT 3 hours 30 minutes ahead of Delhi — a difference of +3h 30m at the current offsets.
In practice, when it is 9:00 AM in CAT it is 12:30 PM in Delhi. Midnight in CAT is 3:30 AM in Delhi. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CAT to Delhi time conversion table
| CAT (CAT) | Delhi (IST) | Day |
|---|---|---|
| 12:00 AM | 3:30 AM | same day |
| 6:00 AM | 9:30 AM | same day |
| 7:00 AM | 10:30 AM | same day |
| 8:00 AM | 11:30 AM | same day |
| 9:00 AM | 12:30 PM | same day |
| 12:00 PM | 3:30 PM | same day |
| 3:00 PM | 6:30 PM | same day |
| 5:00 PM | 8:30 PM | same day |
| 6:00 PM | 9:30 PM | same day |
| 9:00 PM | 12:30 AM | next day |
Why people convert CAT to Delhi time
- Scheduling a call from CAT to Delhi: a 10:00 AM start in CAT lands at 1:30 PM in Delhi, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CAT and Delhi are inside the 9-to-5 working day between 9:00 AM and 1:30 PM CAT time (12:30 PM–5:00 PM IST). That is roughly 4 hours 30 minutes of usable overlap.
- Watching a live event or market open: CAT viewers need 12:30 PM in Delhi to catch a 9:00 AM start there, and 8:30 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 +3h 30m gap is not.
- Block 9:00 AM–1:30 PM CAT as the recurring meeting window if you work primarily from CAT and need Delhi 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 IST (India Standard Time)
India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.
Best time to call between CAT and Delhi
Both CAT and Delhi sit inside the 9 AM – 5 PM working day between 9:00 AM–1:30 PM CAT, which is 12:30 PM–5:00 PM IST. That gives roughly 4 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
CAT and Delhi overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
CAT is 3 hours 30 minutes ahead of Delhi (CAT UTC+02:00 → IST UTC+05:30). The shared working window is 9:00 AM–1:30 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 Delhi?
CAT (CAT, UTC+02:00) is 3 hours 30 minutes ahead of Delhi (IST, UTC+05:30). The gap is currently +3h 30m.
How do I convert CAT time to Delhi time?
Add +3h 30m to CAT local time. For example, 9:00 AM in CAT is 12:30 PM in Delhi.
What time is it in Delhi right now?
Delhi uses IST at UTC+05:30. Use the live converter at the top of this page — it updates in real time and already accounts for the +3h 30m offset from CAT.
What is the best time to call Delhi from CAT?
Call between 9:00 AM and 1:30 PM CAT — that maps to 12:30 PM–5:00 PM IST and keeps both parties inside the working day.
Which is ahead, CAT or Delhi?
CAT is 3 hours 30 minutes ahead of Delhi. When it is 12:00 PM in CAT it is 3:30 PM in Delhi.
Do CAT and Delhi use different time zones?
CAT uses CAT at UTC+02:00, while Delhi (India) uses IST at UTC+05:30. The IANA identifiers are Africa/Harare and Asia/Kolkata.
Does daylight saving time affect the CAT–Delhi difference?
Neither zone observes daylight saving time, so the +3h 30m offset between CAT and Delhi 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 Delhi?
Not normally. The +3h 30m gap only pushes the date over for late-evening times.
What is the time difference between CAT and Delhi?
Delhi is +3h 30m from CAT.
What timezone is CAT in?
CAT operates on its local timezone.
What timezone is Delhi in?
Delhi operates on India Standard Time (IST), UTC+5:30. As India's capital, Delhi time is synchronized with Mumbai and India's National Stock Exchange.
What are the business hours in Delhi?
Standard business hours in Delhi are 9:30 AM - 5:30 PM IST.
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 IST timezone?
Major cities in the IST timezone include Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad.
What is the UTC offset for IST?
India Standard Time (IST) is at UTC+05:30.
What should I know about the IST timezone?
India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT. India uses a single time zone despite spanning 30° of longitude.
When is it midnight in CAT, what time is it in Delhi?
When it is 12:00 AM (midnight) in CAT (CAT), it is +3h 30m later in Delhi (IST).
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