Time Difference Between Chicago and Glasgow

The time difference between Chicago and Glasgow is 6 hours. When it is 12:00 noon in Chicago, it is 18:00 in Glasgow. Chicago uses the America/Chicago time zone (UTC-5), while Glasgow uses Europe/London (UTC+1).

Glasgow is 6 hours ahead of Chicago — 6 hours
Chicago, United States
18:37:34
Sunday, May 10, 2026
UTC-5 · CDT (DST)
Glasgow, United Kingdom
00:37:34
Monday, May 11, 2026
UTC+1 · BST (DST)

Time Zone Details: Chicago vs Glasgow

Detail Chicago Glasgow
Time Zone IDAmerica/ChicagoEurope/London
UTC OffsetUTC-5UTC+1
AbbreviationCDTBST
DST ActiveYes — currently observingYes — currently observing
CountryUnited StatesUnited Kingdom
RegionNorth AmericaEurope

Best Time to Schedule a Call

There are 2 overlapping business hours between Chicago and Glasgow (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–11:00 in Chicago  =  15:00–17:00 in Glasgow

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Chicago time to Glasgow time. Rows highlighted in green indicate overlapping business hours in both cities.

Chicago Glasgow
00:00 06:00 Night
01:00 07:00 Night
02:00 08:00 Night
03:00 09:00 Night
04:00 10:00 Night
05:00 11:00 Night
06:00 12:00
07:00 13:00
08:00 14:00
09:00 15:00 Overlap
10:00 16:00 Overlap
11:00 17:00
12:00 18:00
13:00 19:00
14:00 20:00
15:00 21:00
16:00 22:00
17:00 23:00
18:00 00:00 (+1 day)
19:00 01:00 (+1 day)
20:00 02:00 (+1 day)
21:00 03:00 (+1 day)
22:00 04:00 (+1 day) Night
23:00 05:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Both Chicago and Glasgow are currently observing daylight saving time. The current 6 hours difference reflects both cities' DST offsets. When one city switches back to standard time before the other, the gap will temporarily change by 1 hour.

Practical Tips for Chicago–Glasgow Scheduling

Compare Chicago and Glasgow with Other Cities

From Chicago

From Glasgow

Frequently Asked Questions

What is the time difference between Chicago and Glasgow?

The time difference is 6 hours. Glasgow is 6 hours ahead of Chicago.

Does the time difference change during the year?

Yes. Both cities observe daylight saving time, but they may switch on different dates, causing the gap to shift by 1 hour temporarily.

When is the best time to call from Chicago to Glasgow?

The best window is between 09:00 and 11:00 Chicago time, which corresponds to 15:00–17:00 in Glasgow. Both sides fall within normal business hours.

How do I convert Chicago time to Glasgow time?

Add 6 hours to Chicago time to get Glasgow time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.