Chicago to Grantham time converter

Grantham is 6 hours ahead of Chicago. When it is 9:00 AM in Chicago, it is 3:00 PM in Grantham.

Chicago CDT

Saturday, October 17, 2026

Grantham BST

Sunday, October 18, 2026

Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5
Grantham
United Kingdom
Sun, Oct 18
BSTUTC+1+6h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Grantham conversion table

Every hour of today in Chicago and the matching time in Grantham. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Both sides are at work from 9:00 AM – 12:00 PM in Chicago (3:00 PM – 6:00 PM in Grantham).

Daylight saving time and the difference

The difference changes during the year because Chicago and Grantham switch clocks on different dates:

  • Oct 17, 2026 – Oct 24, 2026: +6h
  • Oct 24, 2026 – Nov 1, 2026: +5h
  • Nov 1, 2026 – Mar 14, 2027: +6h
  • Mar 14, 2027 – Mar 27, 2027: +5h
  • Mar 27, 2027 – Oct 17, 2027: +6h

Distance

Chicago and Grantham are 6,254 km (3,886 miles) apart in a straight line.

More conversions

Grantham to ChicagoChicago to New YorkChicago to LondonChicago to Los AngelesChicago to TorontoChicago to São PauloChicago to ParisChicago to BerlinChicago to MoscowChicago to DubaiChicago to New DelhiChicago to BangkokChicago to Singapore
New York to GranthamLondon to GranthamLos Angeles to GranthamToronto to GranthamSão Paulo to GranthamParis to GranthamBerlin to GranthamMoscow to GranthamDubai to GranthamNew Delhi to GranthamBangkok to GranthamSingapore to Grantham

Questions and answers

What is the time difference between Chicago and Grantham?

Grantham is 6 hours ahead of Chicago.

What time is it in Grantham when it is 9 AM in Chicago?

When it is 9:00 AM in Chicago, it is 3:00 PM in Grantham.

When is the best time to call Grantham from Chicago?

Both sides are at work from 9:00 AM – 12:00 PM in Chicago (3:00 PM – 6:00 PM in Grantham).

Does the time difference between Chicago and Grantham change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.