Switzerland is 4 hours 30 minutes behind Colombo. When Switzerland clocks hit noon, Colombo reads 15:00.
Switzerland observes Europe/Zurich and Colombo observes Asia/Colombo — a 3.5 hours 30 minutes gap between them.
Working hours overlap
Every working day, Switzerland and Colombo are both in business hours for 4.5 hours simultaneously.
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Switzerland
Colombo
Overlap (4.5h)
Optimal meeting slots
Switzerland and Colombo share 4.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.
09:00 Zürich / 12:00 Colombo✓ Both working
10:00 Zürich / 13:00 Colombo✓ Both working
11:00 Zürich / 14:00 Colombo✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Holiday calendar for both locations
Switzerland11 holidays
Sep 10Geneva Prayday
Sep 20Federal Day of Thanksgiving
Sep 21Federal Fast Monday
Nov 1All Saints' Day
Nov 1All Saints' Day
Colombo
No upcoming public holidays this year.
Working across Switzerland and Colombo
Coordinating between Switzerland (Switzerland) and Colombo (Sri Lanka) means working around a 3.5-hour time difference. The 4.5-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
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Schedule at 09:00–10:00 (Switzerland) for a 12:00–13:00 slot in Colombo — the sweet spot where both teams are working.
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Schedule at 10:00–11:00 (Switzerland) for a 13:00–14:00 slot in Colombo — the sweet spot where both teams are working.
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Schedule at 11:00–12:00 (Switzerland) for a 14:00–15:00 slot in Colombo — 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.
Drag the slider at the top to convert any Switzerland time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
