Singapore Time (sgt) is used in Singapore. The IANA timezone identifier is Asia/Singapore.

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

SGT to IST Time Converter

Singapore Time → India Standard Time

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

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

SGT → Ireland Standard Time (Dublin) ↗SGT → 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

SGT (Singapore) vs IST (Mumbai) — time difference

SGT (Singapore) is 2 hours 30 minutes ahead of IST (Mumbai). When SGT (Singapore) clocks hit noon, IST (Mumbai) reads 09:00.

SGT (Singapore) is in the Asia/Singapore timezone. IST (Mumbai) is in Asia/Kolkata. The difference is 2.5 hours 30 minutes.

Shared working hours

Every working day, SGT (Singapore) and IST (Mumbai) are both in business hours for 5.5 hours simultaneously.

00:0006:0012:0018:0024:00

SGT (Singapore)

IST (Mumbai)

Overlap (5.5h)

When to schedule across time zones

Both SGT (Singapore) and IST (Mumbai) are in standard hours simultaneously for 5.5h per day. 3 recommended slots shown below.

12:00 Singapore / 09:00 Mumbai✓ Both working

13:00 Singapore / 10:00 Mumbai✓ Both working

14:00 Singapore / 11:00 Mumbai✓ Both working

Based on standard 09:00–17:00 working hours in each location's local time.

Holiday calendar for both locations

SGT (Singapore)3 holidays

Aug 10National Day

Nov 9Deepavali

Dec 25Christmas Day

IST (Mumbai)

No upcoming public holidays this year.

Working across SGT (Singapore) and IST (Mumbai)

Working across SGT (Singapore) (Singapore) and IST (Mumbai) (India) involves a 2.5-hour gap. The good news: there is a 5.5-hour mutual window in standard business hours that lets both sides collaborate without anyone joining at an unreasonable hour.

💡 Best practice for cross-timezone meetings

✅

12:00–13:00 in SGT (Singapore) = 09:00–10:00 in IST (Mumbai). Both sides are in standard business hours during this window.

✅

13:00–14:00 in SGT (Singapore) = 10:00–11:00 in IST (Mumbai). Both sides are in standard business hours during this window.

✅

14:00–15:00 in SGT (Singapore) = 11:00–12:00 in IST (Mumbai). Both sides are in standard business hours during this window.

DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.

Get the Extension — Free →

Use the time slider above to find the exact equivalent time for any moment in SGT (Singapore). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.

SGT (Singapore) ↔ IST (Mumbai)

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

SGT (Singapore)

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 sgt and ist?

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

Where is sgt used?

Singapore Time (sgt) is used in Singapore and surrounding regions. The IANA timezone identifier is Asia/Singapore.

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 sgt to ist?

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

Popular SGT conversions

SGT → London SGT → New York SGT → Tokyo SGT → Dubai SGT → Sydney SGT → Paris SGT → Berlin SGT → Los Angeles SGT → Toronto SGT → Mumbai

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