India time to Colombo time

The time difference

Colombo is the same time as India all year. Neither place changes its clocks, so the difference never moves. India is always UTC+5:30, known as IST.

India time to Colombo time

Good hours to start a call (8 am to 9 pm in both places): from 8:00 am to 8:00 pm India time. Hours that start inside office time (9 am to 6 pm) in both: 9:00 am to 5:00 pm India time.

Worked examples

All year. An office that closes at 6:00 pm in India closes when it is 6:00 pm in Colombo. A 9:00 am start in Colombo is 9:00 am in India, and its 6:00 pm finish is 6:00 pm in India. A message sent at 10:30 pm from India lands at 10:30 pm in Colombo.

When the date is different

The two places always share the same date and time.

Why the gap is what it is

Indian Standard Time follows the sun at longitude 82.5° east. The zone that Colombo belongs to has its largest city, Colombo, at about 79.8° east. The sun crosses the sky between those two lines in about 11 minutes. Clock time rounds that to a tidy figure: no difference at all. The two figures differ because every country picks a round offset that suits its whole territory, and some add summer time on top.

Rows marked in colour fall between 8 am and 9 pm in both places. Dates are from the IANA time zone database 2026f.

More

Read about time in Colombo or time in India. Other conversions from India: New York, Chicago, Denver, Los Angeles, Toronto, London, Paris, Berlin, Moscow, Dubai, Riyadh, Doha, Kuwait, Karachi, Kathmandu, Dhaka, Singapore, Kuala Lumpur, Bangkok, Hong Kong, Shanghai, Tokyo, Seoul, Sydney, Melbourne, Perth, Auckland, Johannesburg, Nairobi.