San Francisco and Lagos working-hours overlap
On Monday, 28 September 2026, San Francisco is 8 hours behind Lagos — UTC-07:00 against UTC+01:00. They share no working hours that day at all: San Francisco works 16:00–00:00 UTC and Lagos works 08:00–16:00 UTC, and those two windows do not meet. San Francisco changes clocks on Sunday, 1 November 2026, and the gap between them goes from 8 hours to 9 hours. Lagos does not change clocks at all.
Every figure on this page describes Monday, 28 September 2026 — a fixed day, not the day you are reading it. Working hours are 09:00–17:00 local time for both cities; change either, or pick another date, in the overlap calculator.
Shared working hours
No shared working hours on this date.
On this date the two working days do not meet, and none of the twelve months sampled for the year brings them together. Widening one side’s hours is what would change it; no other date will find a window that is not there.
Each city's working day
| City | Local hours | In UTC | Offset | Next clock change |
|---|---|---|---|---|
| San Francisco | 09:00–17:00 | 16:00–00:00 UTC | UTC-07:00 | UTC-07:00 → UTC-08:00, 1 Nov 2026 |
| Lagos | 09:00–17:00 | 08:00–16:00 UTC | UTC+01:00 | No daylight saving |
Is there any overlap through the year?
San Francisco changes clocks on Sunday, 1 November 2026, and Lagos never does, so the gap between them moves only when San Francisco's clocks do. In the twelve months sampled the two working days never meet, so there is no window to move.
| Month | Shared window | Length |
|---|---|---|
| 2026-10 | No shared hours | — |
| 2026-11 | No shared hours | — |
| 2026-12 | No shared hours | — |
| 2027-01 | No shared hours | — |
| 2027-02 | No shared hours | — |
| 2027-03 | No shared hours | — |
| 2027-04 | No shared hours | — |
| 2027-05 | No shared hours | — |
| 2027-06 | No shared hours | — |
| 2027-07 | No shared hours | — |
| 2027-08 | No shared hours | — |
| 2027-09 | No shared hours | — |
Questions
- Is there any time San Francisco and Lagos are both at work?
- Not on Monday, 28 September 2026. San Francisco works 16:00–00:00 UTC and Lagos works 08:00–16:00 UTC, and those windows do not overlap. Widening one side's hours or choosing another date is what changes that.
- How far apart are San Francisco and Lagos?
- On Monday, 28 September 2026, San Francisco is 8 hours behind Lagos — UTC-07:00 against UTC+01:00. San Francisco changes clocks on Sunday, 1 November 2026, and the gap between them goes from 8 hours to 9 hours. Lagos does not change clocks at all.
- Does the overlap between San Francisco and Lagos change through the year?
- There is no month in the twelve months from Monday, 28 September 2026 when San Francisco and Lagos are both inside their working hours. San Francisco changes clocks on Sunday, 1 November 2026, and the gap between them goes from 8 hours to 9 hours. Lagos does not change clocks at all.
Related city pairs
- Honolulu and San Francisco
- Honolulu and Lagos
- San Francisco and Denver
- San Francisco and Phoenix
- San Francisco and Mexico City
- San Francisco and Chicago
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.