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

Eastern European Time (eet) is used in Greece. The IANA timezone identifier is Europe/Athens.

IST to EET Time Converter

India Standard Time → Eastern European Time

IST = UTC+5:30EET = UTC+3

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

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

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

EET (Athens)

Greece · -2.5h

06:30

London

United Kingdom · -4.5h

04:30

New York

USA · -9.5h

23:30-1 day

Tokyo

Japan · +3.5h

12:30

Dubai

United Arab Emirates · -1.5h

07:30

How far apart are IST (Mumbai) and EET (Athens)?

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

IST (Mumbai) observes Asia/Kolkata and EET (Athens) observes Europe/Athens — a 2.5 hours 30 minutes gap between them.

Daily overlap window

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

00:0006:0012:0018:0024:00

IST (Mumbai)

EET (Athens)

Overlap (5.5h)

Optimal meeting slots

IST (Mumbai) and EET (Athens) 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 Mumbai / 09:00 Athens✓ Both working

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

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

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

Holiday calendar for both locations

IST (Mumbai)

No upcoming public holidays this year.

EET (Athens)4 holidays

Aug 15Assumption Day

Oct 28Ochi Day

Dec 25Christmas Day

Dec 26St. Stephen's Day

Working across IST (Mumbai) and EET (Athens)

Coordinating between IST (Mumbai) (India) and EET (Athens) (Greece) means working around a 2.5-hour time difference. The 5.5-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.

💡 Best practice for cross-timezone meetings

✅

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

✅

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

✅

Schedule at 14:00–15:00 (IST (Mumbai)) for a 11:00–12:00 slot in EET (Athens) — 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 IST (Mumbai) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

IST (Mumbai) ↔ EET (Athens)

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

IST (Mumbai)

EET (Athens)

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 ist and eet?

India Standard Time (ist) is UTC+5:30 and Eastern European Time (eet) is UTC+3. The difference between them is 2.5 hours.

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.

Where is eet used?

Eastern European Time (eet) is used in Greece and surrounding regions. The IANA timezone identifier is Europe/Athens.

How do I convert ist to eet?

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

Popular IST conversions

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

Popular EET conversions

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