Convert BST to Chicago
Convert a time in BST to Chicago, with daylight-saving changes applied for the date you choose.
BST to Chicago
Time in BST, Europe
Time in Chicago, United States
- BST now
- —
- Chicago now
- —
Time zone details
BST, Europe
- IANA zone
- Etc/GMT-1
- Standard offset
- UTC+01:00
- Daylight saving
- Not observed
Chicago, United States
- IANA zone
- America/Chicago
- Standard offset
- UTC-06:00
- Daylight offset
- UTC-05:00
- Daylight saving
- Observed
Clocks change in 2026 on 8 March 2026 and 1 November 2026.
Daylight at the solstices
- 21 June
- 05:16 – 20:30 (15h 14m)
- 21 December
- 07:16 – 16:23 (9h 08m)
Sunrise and sunset are calculated for the city centre and are accurate to about a minute. Local elevation and atmospheric conditions shift the observed horizon.
Need the reverse direction? Convert Chicago to BST.
Related time zones conversions
Frequently asked questions
What is the time difference between BST and Chicago?+
BST is UTC+01:00 and Chicago is UTC-06:00 in standard time. The gap between them changes during the year if either place observes daylight saving, so enter a date to see the difference on that day.
Does BST observe daylight saving time?+
No. BST stays on UTC+01:00 all year.
Does Chicago observe daylight saving time?+
Yes. In 2026 the clocks change on 8 March 2026 and 1 November 2026.
Why does one local time sometimes have two answers?+
When clocks go back, the hour before the change repeats, so that local reading happens twice and both instants are valid. When clocks go forward, the skipped hour never occurs, so that reading has no matching instant at all. The converter reports both cases rather than guessing.