Nigeria is 6 hours ahead of Chicago. Midday in Nigeria lines up with 06:00 in Chicago.
Nigeria observes Europe/Lisbon and Chicago observes America/Chicago — a 6 hours gap between them.
Business hours comparison
There is a 2-hour window each day where both Nigeria and Chicago are within standard business hours (09:00–17:00).
00:0006:0012:0018:0024:00
Nigeria
Chicago
Overlap (2h)
Optimal meeting slots
Nigeria and Chicago share 2 hours of business hours overlap daily.
15:00 Lagos / 09:00 Chicago✓ Both working
16:00 Lagos / 10:00 Chicago✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
Nigeria4 holidays
Oct 1National Day
Nov 1National Youth Day
Dec 25Christmas Day
Dec 28Boxing Day
Chicago6 holidays
Sep 7Labour DaySOON
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
Nov 26Thanksgiving Day
How to work with Nigeria and Chicago time zones
Coordinating between Nigeria (Portugal) and Chicago (USA) means working around a 6-hour time difference. The 2-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.
💡 How to schedule across these time zones
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Schedule at 15:00–16:00 (Nigeria) for a 09:00–10:00 slot in Chicago — the sweet spot where both teams are working.
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Schedule at 16:00–17:00 (Nigeria) for a 10:00–11:00 slot in Chicago — 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 Nigeria time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
