Colombo is 9 hours 30 minutes ahead of United States. When it's noon in Colombo, it's 02:00 in United States.
Colombo observes Asia/Colombo and United States observes America/New_York — a 9.5 hours 30 minutes gap between them.
Business hours comparison
When Colombo is in standard working hours, United States is not — and vice versa. There is no mutual business window between these two locations.
Meeting time recommendations
No business hours overlap exists between Colombo and United States. Showing the most balanced options with minimal inconvenience for both locations.
16:00 Colombo / 06:00 New York⚡ One side off-hours
⚠️ 3h before working hours in New York
19:00 Colombo / 09:00 New York⚡ One side off-hours
⚠️ 3h after working hours in Colombo
15:00 Colombo / 05:00 New York⚡ One side off-hours
⚠️ 4h before working hours in New York
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Public holidays this year
Colombo
No upcoming public holidays this year.
United States6 holidays
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
Nov 26Thanksgiving Day
Colombo and United States — practical scheduling
Teams in Colombo (Sri Lanka) and United States (USA) deal with a 9.5-hour gap that pushes their working days apart. Real-time meetings always require someone to stretch outside the standard 9–5.
💡 Practical scheduling guidelines
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16:00–17:00 in Colombo corresponds to 06:00–07:00 in United States (3h before working hours in New York).
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19:00–20:00 in Colombo corresponds to 09:00–10:00 in United States (3h after working hours in Colombo).
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15:00–16:00 in Colombo corresponds to 05:00–06:00 in United States (4h before working hours in New York).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any Colombo time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
