Buenos Aires vs Colombo — Time Zone & Clock

Buenos Aires is behind by 8 hours 30 minutes

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

Colombo

Sri Lanka · +8.5h

17:30

London

United Kingdom · +4h

13:00

New York

USA · -1h

08:00

Tokyo

Japan · +12h

21:00

Dubai

United Arab Emirates · +7h

16:00

Buenos Aires to Colombo — exact time difference

Buenos Aires is 9 hours 30 minutes behind Colombo. When Buenos Aires clocks hit noon, Colombo reads 20:00.

Buenos Aires observes America/Argentina/Buenos_Aires and Colombo observes Asia/Colombo — a 8.5 hours 30 minutes gap between them.

Working hours overlap

When Buenos Aires is in standard working hours, Colombo is not — and vice versa. There is no mutual business window between these two locations.

Optimal meeting slots

No business hours overlap exists between Buenos Aires and Colombo. Showing the most balanced options with minimal inconvenience for both locations.

08:00 Buenos Aires / 16:00 Colombo⚡ One side off-hours

⚠️ 1h before working hours in Buenos Aires

09:00 Buenos Aires / 17:00 Colombo⚡ One side off-hours

⚠️ 1h after working hours in Colombo

07:00 Buenos Aires / 15:00 Colombo⚡ One side off-hours

⚠️ 2h before working hours in Buenos Aires

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

Holiday calendar for both locations

Buenos Aires8 holidays

Jun 15Anniversary of the Passing of General Martín Miguel de GüemesSOON

Jun 20General Manuel Belgrano Memorial DaySOON

Jul 9Independence Day

Aug 17General José de San Martín Memorial Day

Oct 12Day of Respect for Cultural Diversity

Colombo

No upcoming public holidays this year.

Working across Buenos Aires and Colombo

Working across Buenos Aires (Argentina) and Colombo (Sri Lanka) is a challenge — the 8.5-hour difference means no shared business hours window under a standard schedule. Flexibility from at least one side is required.

💡 Best practice for cross-timezone meetings

⚡

08:00–09:00 in Buenos Aires corresponds to 16:00–17:00 in Colombo (1h before working hours in Buenos Aires).

⚡

09:00–10:00 in Buenos Aires corresponds to 17:00–18:00 in Colombo (1h after working hours in Colombo).

⚡

07:00–08:00 in Buenos Aires corresponds to 15:00–16:00 in Colombo (2h before working hours in Buenos Aires).

Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.

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 Buenos Aires time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

Buenos Aires ↔ Colombo

No overlap — one side will join outside working hours

Buenos Aires

Colombo

00:00

08:30

01:00

09:30Working

02:00

10:30Working

03:00

11:30Working

04:00

12:30Working

05:00

13:30Working

06:00

14:30Working

07:00

15:30Working

08:00

16:30Working

09:00Working

17:30off

10:00Working

18:30off

11:00Working

19:30off

12:00Working

20:30off

13:00Working

21:30off

14:00Working

22:30off

15:00Working

23:30off

16:00Working

00:30+1doff

17:00

01:30+1d

18:00

02:30+1d

19:00

03:30+1d

20:00

04:30+1d

21:00

05:30+1d

22:00

06:30+1d

23:00

07:30+1d

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

Frequently Asked Questions

Is Colombo ahead of or behind Buenos Aires?

The offset is 8 hours 30 minutes — Buenos Aires is behind Colombo. Timezones: America/Argentina/Buenos_Aires and Asia/Colombo.

Is there a mutual working window between Buenos Aires and Colombo?

No mutual business hours exist between Buenos Aires and Colombo. The 8 hours 30 minutes difference pushes them into completely separate workdays.

Are there any upcoming DST changes for Buenos Aires or Colombo?

Both Buenos Aires and Colombo are in a stable DST period. No adjustments needed for meetings scheduled in the next 7 days.

If it's noon in Buenos Aires, what time is it in Colombo?

Noon in Buenos Aires corresponds to 8:30 PM in Colombo.

How do I convert Buenos Aires time to Colombo time?

The live slider at the top converts any Buenos Aires time to Colombo instantly. You can also type natural language like "9am" or "15:30".

Does Buenos Aires have holidays coming up that could affect scheduling?

Yes — Buenos Aires has an upcoming public holiday: Anniversary of the Passing of General Martín Miguel de Güemes on June 15. Check the holiday panel above before confirming meetings.

Which UTC offsets do Buenos Aires and Colombo follow?

Buenos Aires is in the America/Argentina/Buenos_Aires timezone. Colombo is in Asia/Colombo. The difference is 8 hours 30 minutes.

How do Buenos Aires and Colombo relate to UTC?

America/Argentina/Buenos_Aires covers Buenos Aires and Asia/Colombo covers Colombo. These IANA identifiers encode their UTC offsets, which currently differ by 8 hours 30 minutes.

Quick time conversions: Buenos Aires → Colombo

Common reference points to help you plan across the time difference.

For every 11:00 AM in Buenos Aires, it's simultaneously 7:30 PM in Colombo.

What's the Colombo equivalent of 3:00 PM Buenos Aires?—11:30 PM

1:00 PMin Buenos Aires→9:30 PMin Colombo

9:00 AM in Buenos Aires corresponds exactly to 5:30 PM in Colombo.

8:00 AMin Buenos Aires→4:30 PMin Colombo

I'm in Buenos Aires at 2:00 PM — what time is my colleague in Colombo seeing?—10:30 PM

12:00 PMin Buenos Aires→8:30 PMin Colombo

Popular Buenos Aires time conversions

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Popular Colombo time conversions

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