🇺🇸VS🇬🇧
🌐Time Difference Calculator
IllinoisvsLondon
🇺🇸Illinois
05:05:10
PM
Sunday, April 26, 2026
-6h
Illinois behind
🇬🇧London
11:05:10
PM
Sunday, April 26, 2026
Time ConverterIllinois ↔ London
Click any row to convert — browse 2000–2050 with the arrows
| 📍Your Local Time detecting… | 🇺🇸 Illinois UTC-05:00 | 🇬🇧 London UTC+01:00 |
|---|
24-Hour OverviewIllinois vs London
12a 4a 8a 12p 4p 8p 12a
🇺🇸IllinoisBase
05:05 PM
🇬🇧London 6h
11:05 PM
✓ Overlap
2h overlap
Work hours (9–5) Overlap Current time
Best Meeting HoursIllinois & London
12am
6am
1am
7am
2am
8am
3am
9am
★
4am
10am
5am
11am
6am
12pm
7am
1pm
8am
2pm
9am
3pm
✓
10am
4pm
✓
11am
5pm
12pm
6pm
1pm
7pm
2pm
8pm
★
3pm
9pm
4pm
10pm
5pm
11pm
6pm
12am
7pm
1am
8pm
2am
9pm
3am
10pm
4am
11pm
5am
✓ Both working Illinois workingLondon working
April 2026 — Time DifferenceIllinois vs London
-6hConstant this month
No DST transitions in April 2026•Applies to all 30 days
Quick Reference — Illinois → London
| 🇺🇸 Illinois (UTC-05:00) | 🇬🇧 London (UTC+01:00) |
|---|---|
| 12:00 AM | 6:00 AM |
| 6:00 AM | 12:00 PM |
| 8:00 AM | 2:00 PM |
| 9:00 AM | 3:00 PM |
| 10:00 AM | 4:00 PM |
| 12:00 PM | 6:00 PM |
| 2:00 PM | 8:00 PM |
| 5:00 PM | 11:00 PM |
| 6:00 PM | 12:00 AM (next day) |
| 8:00 PM | 2:00 AM (next day) |
| 10:00 PM | 4:00 AM (next day) |
🇺🇸
Illinois business hours
= 3:00 PM – 11:00 PM in London
🇬🇧
London business hours
= 3:00 AM – 11:00 AM in Illinois
⇄
Midpoint meeting
1:00 PM in Illinois = 7:00 PM in London
More Tools
Related pages for Illinois and London
Location DetailsIllinois vs London
👥 Population
12,710,158 approx.
vs
8,961,989 approx.
💵 Currency
US Dollar ($)
vs
British Pound (£)
🗣️ Language
English, Spanish
vs
English, Welsh, Scottish Gaelic
📞 Calling Code
+1
vs
+44
📅 Weekend
Saturday,Sunday
=
Saturday,Sunday
🕐 Time Format
12H
=
12H
When to CallEnter a time in Illinois — see what it is in London
:
→
9:00 AM
Both cities in business hours — good time to call!
Quick pick:
Frequently Asked QuestionsIllinois & London — Time Difference
Illinois is 6h behind London. Illinois uses America/Chicago (UTCUTC-05:00), London uses Europe/London (UTCUTC+01:00).
The best overlap for business hours (9 AM–5 PM) is 9:00 AM–11:00 AM Illinois time.
When it is 12:00 PM in Illinois, it is 6:00 PM in London.
Not ideal right now. It is 5:05 PM in Illinois and 11:05 PM in London. Illinois is outside business hours. London is outside business hours.
Neither Illinois nor London is currently observing Daylight Saving Time.
It is Sunday in both Illinois and London right now.
When it is 9:00 AM in Illinois, it is 3:00 PM in London.
Compare with Other Cities
See how Illinois and London differ from major world cities