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OttawaUnited States

Current time in Ottawa, United States

Saturday, 19 September 2026

Central Daylight TimeUTC-05:00

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Ottawa time at a glance

Country
United States
Location
City in Illinois
Time zone
America/Chicago
UTC offset now
UTC-05:00
Current zone label
GMT-5
Next clock change
1 November 2026 at 01:00 GMT-6

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Time-zone identity for Ottawa

IANA zone
America/Chicago
UTC offset now
UTC-05:00
Current zone label
GMT-5
Clock-change status
An offset change was found in the next 370 days.

Ottawa is currently 5 hours behind UTC. The named zone, rather than the offset alone, should be used for future dates.

Next clock change in Ottawa

UTC-06:00UTC-06:00

This change comes from the IANA Time Zone Database. It is described as an offset change unless its daylight-saving purpose can be verified.

Time-zone history

UTC offset changes for Ottawa

A bounded record of offset transitions calculated for America/Chicago, covering 2021 through 2031. Events are offset changes; their legal or daylight-saving cause is not inferred.

Previous 5 years

  1. UTC-05:00 UTC-05:00UTC offset decreased by
  2. UTC-06:00 UTC-06:00UTC offset decreased by
  3. UTC-05:00 UTC-05:00UTC offset decreased by
  4. UTC-06:00 UTC-06:00UTC offset decreased by
  5. UTC-05:00 UTC-05:00UTC offset decreased by
  6. UTC-06:00 UTC-06:00UTC offset decreased by
  7. UTC-05:00 UTC-05:00UTC offset decreased by
  8. UTC-06:00 UTC-06:00UTC offset decreased by
  9. UTC-05:00 UTC-05:00UTC offset decreased by
  10. UTC-06:00 UTC-06:00UTC offset decreased by

Next 5 years

  1. UTC-06:00 UTC-06:00UTC offset decreased by
  2. UTC-05:00 UTC-05:00UTC offset decreased by
  3. UTC-06:00 UTC-06:00UTC offset decreased by
  4. UTC-05:00 UTC-05:00UTC offset decreased by
  5. UTC-06:00 UTC-06:00UTC offset decreased by
  6. UTC-05:00 UTC-05:00UTC offset decreased by
  7. UTC-06:00 UTC-06:00UTC offset decreased by
  8. UTC-05:00 UTC-05:00UTC offset decreased by
  9. UTC-06:00 UTC-06:00UTC offset decreased by
  10. UTC-05:00 UTC-05:00UTC offset decreased by

Dates are calculated from IANA time-zone rules. The calculation checks for offset changes throughout the displayed period and resolves each change to the nearest second.

Location context

About Ottawa

Location details for Ottawa in Illinois, United States.

Administrative area
Illinois, United States
Population
18,342
Coordinates
41.3456° N, 88.8426° W. The elevation is 147 metres.

Nearby city clocks

Cities near Ottawa

Nearby cities are ordered by approximate straight-line distance from Ottawa. Times are calculated for the same instant shown above.

Sources for Ottawa time and city facts

Time-zone calculations use runtime tzdb 2026b. Weather and astronomy sources include their own retrieval times where available.

View 3 sources
  • GeoNames cities15000
    GeoNames · 2026-07-15_01-57-51-849 · CC BY 4.0 · Accessed
    City and country names, administrative area, coordinates and population.
  • IANA Time Zone Database
    Internet Assigned Numbers Authority · 2026b · Public domain · Accessed
    Time-zone names, UTC offsets and clock changes.
  • Unicode Common Locale Data Repository
    Unicode Consortium · 48.0 · Unicode License v3 · Accessed
    English display names for countries, currencies and languages.
Current time in Ottawa, United States | UTC Time Now