Offset
The time difference between Chicago and Reykjavík is 5 hours.
Chicago (CDT) is behind Reykjavík (GMT).
CDT: UTC-5
GMT: UTC
Chicago is currently observing daylight saving time; Reykjavík is not.
When to schedule
Business-hours overlap: 9 AM–12 PM in Chicago (2 PM–5 PM in Reykjavík).
Both teams are in working hours during this window on weekdays.
Suggested time: 10:00 AM Chicago (3:00 PM Reykjavík).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
Iceland
- New Year's DayThu, Jan 1
- Maundy ThursdayThu, Apr 2
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- Easter MondayMon, Apr 6
- First Day of SummerThu, Apr 23
- May DayFri, May 1
- Ascension DayThu, May 14
- PentecostSun, May 24
- Whit MondayMon, May 25
- Icelandic National DayWed, Jun 17
- Commerce DayMon, Aug 3
- Christmas EveThu, Dec 24
- Christmas DayFri, Dec 25
- St. Stephen's DaySat, Dec 26
- New Year's EveThu, Dec 31
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Chicago | Reykjavík | Day |
|---|---|---|
| 12:00 am | 5:00 am | Same day |
| 1:00 am | 6:00 am | Same day |
| 2:00 am | 7:00 am | Same day |
| 3:00 am | 8:00 am | Same day |
| 4:00 am | 9:00 am | Same day |
| 5:00 am | 10:00 am | Same day |
| 6:00 am | 11:00 am | Same day |
| 7:00 am | 12:00 pm | Same day |
| 8:00 am | 1:00 pm | Same day |
| 9:00 am | 2:00 pm | Same day |
| 10:00 am | 3:00 pm | Same day |
| 11:00 am | 4:00 pm | Same day |
| 12:00 pm | 5:00 pm | Same day |
| 1:00 pm | 6:00 pm | Same day |
| 2:00 pm | 7:00 pm | Same day |
| 3:00 pm | 8:00 pm | Same day |
| 4:00 pm | 9:00 pm | Same day |
| 5:00 pm | 10:00 pm | Same day |
| 6:00 pm | 11:00 pm | Same day |
| 7:00 pm | 12:00 am | +1 day |
| 8:00 pm | 1:00 am | +1 day |
| 9:00 pm | 2:00 am | +1 day |
| 10:00 pm | 3:00 am | +1 day |
| 11:00 pm | 4:00 am | +1 day |
Daylight saving time
Chicago observes daylight saving time; Reykjavík does not. The offset between the two zones changes when Chicago transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:17 AM
- Sunset
- 8:24 PM
- Day length
- 15h 7m
- Sunrise
- 3:08 AM
- Sunset
- 11:47 PM
- Day length
- 20h 38m
Cities in these zones
Other cities in Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Central Time
- GYY
- MDW
- ORD
- HOU
- IAH
- SAT
- DAL
- DFW
- AUS
- BNA
Airports in Greenwich Mean Time
- KEF
- RKV
Related conversions
Common conversions
- What is 9:00 am Chicago in Reykjavík?
- 9:00 am Chicago is 2:00 pm Reykjavík.
- What is 12:00 pm Chicago in Reykjavík?
- 12:00 pm Chicago is 5:00 pm Reykjavík.
- What is 12:30 pm Chicago in Reykjavík?
- 12:30 pm Chicago is 5:30 pm Reykjavík.
- What is 2:00 pm Chicago in Reykjavík?
- 2:00 pm Chicago is 7:00 pm Reykjavík.
- What is 5:00 pm Chicago in Reykjavík?
- 5:00 pm Chicago is 10:00 pm Reykjavík.
- What is 11:30 pm Chicago in Reykjavík?
- 11:30 pm Chicago is 4:30 am Reykjavík, the next day.