Time Difference Between London and Indianapolis

The time difference between London and Indianapolis is 4 hours. When it is 12:00 noon in London, it is 08:00 in Indianapolis. London uses the Europe/London time zone (UTC+0), while Indianapolis uses America/Indiana/Indianapolis (UTC-4).

Indianapolis is 4 hours behind London — 4 hours
London, United Kingdom
22:29:28
Thursday, March 26, 2026
UTC+0 · GMT
↔
Indianapolis, United States
18:29:28
Thursday, March 26, 2026
UTC-4 · EDT (DST)

Time Zone Details: London vs Indianapolis

Detail London Indianapolis
Time Zone IDEurope/LondonAmerica/Indiana/Indianapolis
UTC OffsetUTC+0UTC-4
AbbreviationGMTEDT
DST ActiveNoYes — currently observing
CountryUnited KingdomUnited States
RegionEuropeNorth America

Best Time to Schedule a Call

There are 4 overlapping business hours between London and Indianapolis (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

13:00–17:00 in London  =  09:00–13:00 in Indianapolis

Hour-by-Hour Time Conversion

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

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

Daylight Saving Time (DST) Impact

Indianapolis is currently observing daylight saving time, while London is on standard time. When Indianapolis switches back to standard time, the difference between these two cities will shift by 1 hour.

Practical Tips for London–Indianapolis Scheduling

Compare London and Indianapolis with Other Cities

From London

London vs New York London vs Tokyo London vs Sydney London vs Dubai London vs Los Angeles London vs Paris London vs Singapore London vs Berlin London vs Toronto London vs Hong Kong London vs Mumbai London vs Seoul London vs Chicago London vs San Francisco London vs Moscow London vs Bangkok London vs Shanghai London vs Sao Paulo London vs Mexico City London vs Cairo London vs Johannesburg

From Indianapolis

Indianapolis vs New York Indianapolis vs Tokyo Indianapolis vs Sydney Indianapolis vs Dubai Indianapolis vs Los Angeles Indianapolis vs Paris Indianapolis vs Singapore Indianapolis vs Berlin Indianapolis vs Toronto Indianapolis vs Hong Kong Indianapolis vs Mumbai Indianapolis vs Seoul Indianapolis vs Chicago Indianapolis vs San Francisco Indianapolis vs Moscow Indianapolis vs Bangkok Indianapolis vs Shanghai Indianapolis vs Sao Paulo Indianapolis vs Mexico City Indianapolis vs Cairo Indianapolis vs Johannesburg

Frequently Asked Questions

What is the time difference between London and Indianapolis?

The time difference is 4 hours. Indianapolis is 4 hours behind London.

Does the time difference change during the year?

Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.

When is the best time to call from London to Indianapolis?

The best window is between 13:00 and 17:00 London time, which corresponds to 09:00–13:00 in Indianapolis. Both sides fall within normal business hours.

How do I convert London time to Indianapolis time?

Subtract 4 hours from London time to get Indianapolis 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.