Delhi to Oslo
-3h 30mDelhi
ISTSOURCEOslo
CESTGreen rows indicate typical business hours (9 AM - 5 PM)
IST and CEST on the World Map
The map below highlights the IST (India Standard Time) and CEST (Central European Time) timezone regions across the globe.
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.
CET – Central European Time
UTC+01:00Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.
- •CET covers more European countries than any other time zone.
- •Spain uses CET despite being geographically aligned with GMT/WET.
- •The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
- •Over 500 million people live in the CET time zone.
- •France moved to CET during the German occupation in WWII and never switched back.
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.
About Oslo
WikipediaOslo operates on Central European Time (CET/CEST). As home to the world's largest sovereign wealth fund and major oil firms, Oslo influences global energy markets.
Oslo aims to be car-free by 2030.
Comparing Time Zones: Delhi and Oslo
Delhi runs on India Standard Time (IST) at UTC+05:30. Oslo runs on Central European Summer Time (CEST) at UTC+02:00, also currently on daylight saving time. That puts Delhi 3 hours 30 minutes behind Oslo — a difference of -3h 30m at the current offsets.
In practice, when it is 9:00 AM in Delhi it is 5:30 AM in Oslo. Midnight in Delhi is 8:30 PM in Oslo.Oslo observes daylight saving time while Delhi does not, so the gap narrows or widens by an hour part of the year.
Delhi to Oslo time conversion table
| Delhi (IST) | Oslo (CEST) | Day |
|---|---|---|
| 12:00 AM | 8:30 PM | previous day |
| 6:00 AM | 2:30 AM | same day |
| 7:00 AM | 3:30 AM | same day |
| 8:00 AM | 4:30 AM | same day |
| 9:00 AM | 5:30 AM | same day |
| 12:00 PM | 8:30 AM | same day |
| 3:00 PM | 11:30 AM | same day |
| 5:00 PM | 1:30 PM | same day |
| 6:00 PM | 2:30 PM | same day |
| 9:00 PM | 5:30 PM | same day |
Why people convert Delhi to Oslo time
- Scheduling a call from Delhi to Oslo: a 10:00 AM start in Delhi lands at 6:30 AM in Oslo, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Delhi and Oslo are inside the 9-to-5 working day between 12:30 PM and 5:00 PM IST time (9:00 AM–1:30 PM CEST). That is roughly 4 hours 30 minutes of usable overlap.
- Coordinating a Delhi-based team with Oslo contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a -3h 30m gap is not.
- Block 12:30 PM–5:00 PM IST as the recurring meeting window if you work primarily from Delhi and need Oslo colleagues present.
- Oslo: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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.
About CET (Central European Time)
Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.
Best time to call between Delhi and Oslo
Both Delhi and Oslo sit inside the 9 AM – 5 PM working day between 12:30 PM–5:00 PM IST, which is 9:00 AM–1:30 PM CEST. That gives roughly 4 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Delhi and Oslo overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
Delhi is 3 hours 30 minutes behind Oslo (IST UTC+05:30 → CEST UTC+02:00). The shared working window is 12:30 PM–5:00 PM IST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Delhi
Does not observe DST
Oslo
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
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 Delhi and Oslo?
Delhi (IST, UTC+05:30) is 3 hours 30 minutes behind Oslo (CEST, UTC+02:00). The gap is currently -3h 30m.
How do I convert Delhi time to Oslo time?
Add -3h 30m to Delhi local time. For example, 9:00 AM in Delhi is 5:30 AM in Oslo.
What time is it in Oslo right now?
Oslo uses CEST at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -3h 30m offset from Delhi.
What is the best time to call Oslo from Delhi?
Call between 12:30 PM and 5:00 PM IST — that maps to 9:00 AM–1:30 PM CEST and keeps both parties inside the working day.
Which is behind, Delhi or Oslo?
Delhi is 3 hours 30 minutes behind Oslo. When it is 12:00 PM in Delhi it is 8:30 AM in Oslo.
Do Delhi and Oslo use different time zones?
Delhi (India) uses IST at UTC+05:30, while Oslo (Norway) uses CEST at UTC+02:00. The IANA identifiers are Asia/Kolkata and Europe/Oslo.
Does daylight saving time affect the Delhi–Oslo difference?
Yes at the moment: Oslo is on daylight saving time and Delhi is not, so the -3h 30m gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Delhi's time zone?
IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.
Which countries use IST, Delhi's zone?
IST is used in India, Sri Lanka.
Is there a day difference between Delhi and Oslo?
Not normally. The -3h 30m gap only pushes the date over the previous day.
What is the time difference between Delhi and Oslo?
Oslo is -3h 30m from Delhi.
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 timezone is Oslo in?
Oslo operates on Central European Time (CET/CEST). As home to the world's largest sovereign wealth fund and major oil firms, Oslo influences global energy markets.
What are the business hours in Delhi?
Standard business hours in Delhi are 9:30 AM - 5:30 PM IST.
What are the business hours in Oslo?
Standard business hours in Oslo are 8:00 AM - 4:00 PM CET.
What is the best time to schedule a call between Delhi and Oslo?
The best overlap for a call is when both cities are in business hours. Delhi works 9:30 AM - 5:30 PM IST and Oslo works 8:00 AM - 4:00 PM CET (-3h 30m difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Delhi and Oslo?
Delhi uses INR (₹) while Oslo uses NOK (kr). Check current exchange rates when planning travel or business between these cities.
How do Delhi and Oslo compare in size?
Delhi has a population of approximately 11 million (metro: 32.9 million), while Oslo has approximately 693,000 (metro: 1.5 million).
What are the major landmarks in Delhi and Oslo?
Delhi is known for India Gate, Red Fort, Qutub Minar. Oslo is famous for Oslo Opera House, Vigeland Park, Akershus Fortress.
Do Delhi and Oslo have stock exchanges?
Yes. Delhi has the NSE (National Stock Exchange) and Oslo has the OSE (Oslo Stock Exchange). The -3h 30m time difference affects trading hour overlaps between these exchanges.
Which countries use IST (India Standard Time)?
IST is used in India, Sri Lanka.
Does IST observe daylight saving time?
No, IST does not observe daylight saving time and remains at UTC+05:30 year-round.
What are some interesting facts about IST?
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.
Which cities are in the CET timezone?
Major cities in the CET timezone include Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw.
What is the UTC offset for CET?
Central European Time (CET) is at UTC+01:00. During daylight saving time, it shifts to CEST.
What should I know about the CET timezone?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
When is it midnight in Delhi, what time is it in Oslo?
When it is 12:00 AM (midnight) in Delhi (IST), it is -3h 30m later in Oslo (CET).
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