Clockjumper

Timezone conversion

BST to Chicago Time — Convert British Summer Time to Chicago

Chicago is currently 6 hours behind BST, and that is the gap for most of the year. Because the two regions change their clocks on different dates, the gap differs by an hour for a short period each spring and each autumn.

Chicago is currently 6 hours behind BST.

BST • BST (UTC+1)
3:32 PM
Thursday, Sep 10
Chicago • CDT (UTC-5)
9:32 AM
Thursday, Sep 10

Abbreviation disambiguation

On Clockjumper, BST refers to British Summer Time (UTC+1), the UK's daylight-saving offset. The same letters are also used locally for Bangladesh Standard Time (UTC+6) — check the city or UTC offset to be sure which is meant.

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Full BST to Chicago conversion table

BSTChicago
12:00 AM6:00 PM(previous day)
1:00 AM7:00 PM(previous day)
2:00 AM8:00 PM(previous day)
3:00 AM9:00 PM(previous day)
4:00 AM10:00 PM(previous day)
5:00 AM11:00 PM(previous day)
6:00 AM12:00 AM
7:00 AM1:00 AM
8:00 AM2:00 AM
9:00 AM3:00 AM
10:00 AM4:00 AM
11:00 AM5:00 AM
12:00 PM6:00 AM
1:00 PM7:00 AM
2:00 PM8:00 AM
3:00 PM9:00 AM
4:00 PM10:00 AM
5:00 PM11:00 AM
6:00 PM12:00 PM
7:00 PM1:00 PM
8:00 PM2:00 PM
9:00 PM3:00 PM
10:00 PM4:00 PM
11:00 PM5:00 PM

Daylight saving and how the gap changes

Chicago is 6 hours behind BST for most of the year. British Summer Time and Chicago both observe daylight saving, but they change their clocks on different dates, so for a short period each spring and each autumn the gap differs by an hour — the converter above always reflects the correct offset for the date you pick.

Frequently asked questions

Is Chicago ahead of or behind BST right now?
Chicago is currently 6 hours behind BST.
What is the current BST to Chicago time difference?
Right now the gap is 6 hours — Chicago is 6 hours behind BST.
Does the BST → Chicago offset change during the year?
Yes, briefly. For most of the year Chicago is 6 hours behind BST, but British Summer Time and Chicago change their clocks on different dates, so for a short period each spring and each autumn the gap differs by an hour. The converter above always reflects the correct offset for the date you pick.
Does BST observe daylight saving time?
BST is itself the daylight-saving form. British Summer Time is in force at UTC+1 through the summer months; outside that window the same zone is on GMT (UTC+0).
Does Chicago observe daylight saving time?
Yes — Chicago observes DST, so its UTC offset shifts by 1 hour between winter and summer.
What time is 3 AM BST in Chicago?
3:00 AM BST is 9:00 PM (previous day) Chicago.
What time is 8 AM BST in Chicago?
8:00 AM BST is 2:00 AM Chicago.
What time is 9 AM BST in Chicago?
9:00 AM BST is 3:00 AM Chicago.
What time is 10 AM BST in Chicago?
10:00 AM BST is 4:00 AM Chicago.
What time is 11 AM BST in Chicago?
11:00 AM BST is 5:00 AM Chicago.
What time is 12 PM (noon) BST in Chicago?
12:00 PM BST is 6:00 AM Chicago.
What time is 2 PM BST in Chicago?
2:00 PM BST is 8:00 AM Chicago.
What time is 3 PM BST in Chicago?
3:00 PM BST is 9:00 AM Chicago.
What time is 4 PM BST in Chicago?
4:00 PM BST is 10:00 AM Chicago.
What time is 5 PM BST in Chicago?
5:00 PM BST is 11:00 AM Chicago.
What time is 9 PM BST in Chicago?
9:00 PM BST is 3:00 PM Chicago.
What time is 10 PM BST in Chicago?
10:00 PM BST is 4:00 PM Chicago.
When is the best time to schedule a call between BST and Chicago?
The working-hours overlap (09:00–17:00 in both zones) runs roughly 3:00 PM – 5:00 PM BST (≈ 2 hours). The midpoint of that window — 4:00 PM BST, 10:00 AM Chicago — is the safest single slot to propose for a live call.
What time zone does BST refer to?
BST refers to British Summer Time (IANA: Europe/London).
What time zone does Chicago refer to?
Chicago uses the America/Chicago time zone.
Is BST on this page the same as other zones that share the letters "BST"?
On Clockjumper, BST refers to British Summer Time (UTC+1), the UK's daylight-saving offset. The same letters are also used locally for Bangladesh Standard Time (UTC+6) — check the city or UTC offset to be sure which is meant.

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