Chennai to Tokyo Time

Live IST ↔ JST time converter · Tamil Nadu, India → Japan

Chennai IST (Indian Standard Time) · UTC+05:30
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Tamil Nadu, India
3.5h ahead of IST
UTC+9
Tokyo JST (Japan Standard Time) · UTC+9
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Japan

24-Hour Overlap Timeline

✅ Overlap: 9:00 AM–2:00 PM in Chennai · 1:00 PM–6:00 PM in Tokyo (5h window)
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UTC →
🇮🇳 Chennai UTC+5:30 5a 6a 7a 8a 9a 10a 11a 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p 12a 1a 2a 3a 4a
🇯🇵 Tokyo UTC+9 9a 10a 11a 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p 12a 1a 2a 3a 4a 5a 6a 7a 8a
Both working Working Off hours Sleeping Now

IST (Indian Standard Time) to Tokyo (JST (Japan Standard Time)) Conversion Table

All 24 hours of the day · based on JST (Japan Standard Time).
✅ Both in business hours 🔵 India office hours only 🟢 Tokyo office hours only

IST (Indian Standard Time) — Chennai Tokyo — JST Working hours
12:00 AM IST (Indian Standard Time) 3:30 AM JST
1:00 AM IST (Indian Standard Time) 4:30 AM JST
2:00 AM IST (Indian Standard Time) 5:30 AM JST
3:00 AM IST (Indian Standard Time) 6:30 AM JST
4:00 AM IST (Indian Standard Time) 7:30 AM JST
5:00 AM IST (Indian Standard Time) 8:30 AM JST
6:00 AM IST (Indian Standard Time) 9:30 AM JST 🟢 JST only
7:00 AM IST (Indian Standard Time) 10:30 AM JST 🟢 JST only
8:00 AM IST (Indian Standard Time) 11:30 AM JST 🟢 JST only
9:00 AM IST (Indian Standard Time) 12:30 PM JST ✅ overlap
10:00 AM IST (Indian Standard Time) 1:30 PM JST ✅ overlap
11:00 AM IST (Indian Standard Time) 2:30 PM JST ✅ overlap
12:00 PM IST (Indian Standard Time) 3:30 PM JST ✅ overlap
1:00 PM IST (Indian Standard Time) 4:30 PM JST ✅ overlap
2:00 PM IST (Indian Standard Time) 5:30 PM JST 🔵 India only
3:00 PM IST (Indian Standard Time) 6:30 PM JST 🔵 India only
4:00 PM IST (Indian Standard Time) 7:30 PM JST 🔵 India only
5:00 PM IST (Indian Standard Time) 8:30 PM JST 🔵 India only
6:00 PM IST (Indian Standard Time) 9:30 PM JST
7:00 PM IST (Indian Standard Time) 10:30 PM JST
8:00 PM IST (Indian Standard Time) 11:30 PM JST
9:00 PM IST (Indian Standard Time) 12:30 AM JST +1 day
10:00 PM IST (Indian Standard Time) 1:30 AM JST +1 day
11:00 PM IST (Indian Standard Time) 2:30 AM JST +1 day
🇮🇳 Travel Guide

Explore Chennai — Top Attractions & Travel Guide

Discover top attractions, local tips and hidden gems in Chennai on india-guide.in — India's curated travel destination guide.

Explore Chennai on india-guide.in →

Best Time to Call Tokyo from Chennai

Business Hours Overlap 9:00 AM – 1:30 PM IST

Both Chennai and Tokyo are in standard business hours simultaneously during this window. Schedule meetings, investor calls, or client demos in this slot for maximum availability.

Morning India call
9:00 AM IST
12:30 PM JST
Midday call
12:00 PM IST
3:30 PM JST
End of India day
6:00 PM IST
9:30 PM JST
🇮🇳

Chennai, India

Time zone: IST (UTC+05:30) — fixed, no DST
State: Tamil Nadu

Chennai is south India's commercial capital and the automotive hub of Asia. All major global automakers — Hyundai, BMW, Ford (former), Nissan, Renault — have manufacturing plants in the Chennai–Sriperumbudur corridor. The city is also a significant IT and BPO hub, known as the 'Detroit of India' for automotive and the 'Next Silicon Valley of India' for tech. Chennai handles 40% of India's auto exports.

  • India's automotive capital — Hyundai, BMW, Nissan plants
  • 40% of India's automobile exports shipped from Chennai port
  • World's 4th largest beach (Marina Beach) draws tourism
  • Tamil classical arts and Carnatic music global centre
🇮🇳 Explore Chennai attractions on india-guide.in →
🇯🇵

Tokyo, Japan

Time zone: JST (UTC+9, no DST)
Region: East Asia

Tokyo is the world's largest metropolitan area and home to the Tokyo Stock Exchange, the world's third-largest by capitalisation. Major Japanese corporations — Toyota, Sony, SoftBank — all have significant India investments. SoftBank's Vision Fund, headquartered in Tokyo, has deployed tens of billions of dollars into Indian startups including Flipkart, Ola, and Paytm.

  • No DST — always 3.5h ahead of IST
  • World's largest metro by population
  • SoftBank Vision Fund — India's largest tech investor
  • Mumbai–Ahmedabad bullet train: Japan–India partnership
India connections: SoftBank Vision Fund — India's top startup investor. Toyota, Honda, Suzuki all manufacture in India. Japan–India infrastructure projects (Mumbai-Ahmedabad bullet train). Direct Air India flights from Delhi & Mumbai.

Frequently Asked Questions

What is the time difference between Chennai and Tokyo?
Tokyo is always 3.5h ahead of IST year-round. Japan does not observe daylight saving time.
What is 9 AM IST in Tokyo?
9:00 AM IST (Chennai) = 12:30 PM JST in Tokyo.
What is the best time to schedule a meeting between Chennai and Tokyo?
The optimal meeting window is 9:00 AM–1:30 PM IST when both Chennai and Tokyo offices are open. Book in this window to avoid after-hours calls.
Does India observe daylight saving time (DST)?
No. India (IST, UTC+5:30) does not observe daylight saving time and has not done so since 1945. Indian Standard Time is fixed year-round. This means that when Tokyo also does not change, so the Chennai–Tokyo offset is perfectly stable all year.
Why is India on a half-hour timezone (UTC+5:30)?
India's UTC+5:30 offset was established in 1905 as a compromise between the time zones of Bombay (UTC+4:52) and Calcutta (UTC+5:54) when India unified under British rule. Several countries use half-hour or quarter-hour offsets — including Nepal (UTC+5:45), Iran (UTC+3:30), and parts of Australia (UTC+9:30) — to better align solar noon with clock noon across their territory.