Hong Kong Time (hkt) is used in Hong Kong. The IANA timezone identifier is Asia/Hong_Kong.

India Standard Time (ist) is used in India. The IANA timezone identifier is Asia/Kolkata.

HKT to IST Time Converter

Hong Kong Time → India Standard Time

HKT = UTC+8IST = UTC+5:30

⚠️ IST is ambiguous — on this page it means India Standard Time. It also refers to:

HKT → Ireland Standard Time (Dublin) ↗HKT → Israel Standard Time (Jerusalem) ↗

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

IST (Mumbai)

India · -2.5h

06:30

London

United Kingdom · -7h

02:00

New York

USA · -12h

21:00-1 day

Tokyo

Japan · +1h

10:00

Dubai

United Arab Emirates · -4h

05:00

HKT (Hong Kong) vs IST (Mumbai) — time difference

HKT (Hong Kong) is 2 hours 30 minutes ahead of IST (Mumbai). When it's noon in HKT (Hong Kong), it's 09:00 in IST (Mumbai).

HKT (Hong Kong) observes Asia/Hong_Kong and IST (Mumbai) observes Asia/Kolkata — a 2.5 hours 30 minutes gap between them.

Shared working hours

Both HKT (Hong Kong) and IST (Mumbai) are simultaneously in business hours for 5.5 hours per day (assuming standard 9:00–17:00 working hours).

00:0006:0012:0018:0024:00

HKT (Hong Kong)

IST (Mumbai)

Overlap (5.5h)

Meeting time recommendations

HKT (Hong Kong) and IST (Mumbai) share 5.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.

12:00 Hong Kong / 09:00 Mumbai✓ Both working

13:00 Hong Kong / 10:00 Mumbai✓ Both working

14:00 Hong Kong / 11:00 Mumbai✓ Both working

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Public holidays this year

HKT (Hong Kong)7 holidays

Jun 19Dragon Boat FestivalSOON

Jul 1Hong Kong Special Administrative Region Establishment DaySOON

Sep 26Day following the Mid-Autumn Festival

Oct 1National Day

Oct 19Chung Yeung Festival

IST (Mumbai)

No upcoming public holidays this year.

HKT (Hong Kong) and IST (Mumbai) — practical scheduling

Teams in HKT (Hong Kong) (Hong Kong) and IST (Mumbai) (India) face a 2.5-hour time difference day to day. A 5.5-hour shared business hours window makes real-time meetings feasible for both sides within their normal working day.

💡 Practical scheduling guidelines

✅

Schedule at 12:00–13:00 (HKT (Hong Kong)) for a 09:00–10:00 slot in IST (Mumbai) — the sweet spot where both teams are working.

✅

Schedule at 13:00–14:00 (HKT (Hong Kong)) for a 10:00–11:00 slot in IST (Mumbai) — the sweet spot where both teams are working.

✅

Schedule at 14:00–15:00 (HKT (Hong Kong)) for a 11:00–12:00 slot in IST (Mumbai) — the sweet spot where both teams are working.

Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.

Install ClockinSync Free →

Drag the slider at the top to convert any HKT (Hong Kong) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

HKT (Hong Kong) ↔ IST (Mumbai)

5h of business hours overlap daily (09:00–17:00)

HKT (Hong Kong)

IST (Mumbai)

00:00

21:30-1d

01:00

22:30-1d

02:00

23:30-1d

03:00

00:30

04:00

01:30

05:00

02:30

06:00

03:30

07:00

04:30

08:00

05:30

09:00Working

06:30off

10:00Working

07:30off

11:00Working

08:30off

12:00Working

09:30Working

13:00Working

10:30Working

14:00Working

11:30Working

15:00Working

12:30Working

16:00Working

13:30Working

17:00

14:30Working

18:00

15:30Working

19:00

16:30Working

20:00

17:30

21:00

18:30

22:00

19:30

23:00

20:30

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between hkt and ist?

Hong Kong Time (hkt) is UTC+8 and India Standard Time (ist) is UTC+5:30. The difference between them is 2.5 hours.

Where is hkt used?

Hong Kong Time (hkt) is used in Hong Kong and surrounding regions. The IANA timezone identifier is Asia/Hong_Kong.

Where is ist used?

India Standard Time (ist) is used in India and surrounding regions. The IANA timezone identifier is Asia/Kolkata. Note: ist is ambiguous and may refer to other timezones.

How do I convert hkt to ist?

Use the interactive converter above. Drag the time slider to any hkt time and the ist equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular HKT conversions

HKT → London HKT → New York HKT → Tokyo HKT → Dubai HKT → Sydney HKT → Paris HKT → Berlin HKT → Singapore HKT → Los Angeles HKT → Toronto

Popular IST conversions

London → IST New York → IST Tokyo → IST Dubai → IST Sydney → IST Paris → IST Berlin → IST Singapore → IST Los Angeles → IST Toronto → IST