London to Mason time converter

Mason is 5 hours behind London. When it is 9:00 AM in London, it is 4:00 AM in Mason.

London BST

Monday, October 19, 2026

Mason EDT

Sunday, October 18, 2026

London
United Kingdom
Mon, Oct 19
BSTUTC+1
Mason
Ohio, United States
Sun, Oct 18
EDTUTC-4-5h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Mason conversion table

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

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

Best time to call or meet

Both sides are at work from 2:00 PM – 6:00 PM in London (9:00 AM – 1:00 PM in Mason).

Daylight saving time and the difference

The difference changes during the year because London and Mason switch clocks on different dates:

  • Oct 19, 2026 – Oct 25, 2026: -5h
  • Oct 25, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Mar 28, 2027: -4h
  • Mar 28, 2027 – Oct 19, 2027: -5h

Distance

London and Mason are 6,334 km (3,936 miles) apart in a straight line.

More conversions

Mason to LondonLondon to New YorkLondon to Los AngelesLondon to ChicagoLondon to TorontoLondon to São PauloLondon to ParisLondon to BerlinLondon to MoscowLondon to DubaiLondon to New DelhiLondon to BangkokLondon to Singapore
New York to MasonLos Angeles to MasonChicago to MasonToronto to MasonSão Paulo to MasonParis to MasonBerlin to MasonMoscow to MasonDubai to MasonNew Delhi to MasonBangkok to MasonSingapore to Mason

Questions and answers

What is the time difference between London and Mason?

Mason is 5 hours behind London.

What time is it in Mason when it is 9 AM in London?

When it is 9:00 AM in London, it is 4:00 AM in Mason.

When is the best time to call Mason from London?

Both sides are at work from 2:00 PM – 6:00 PM in London (9:00 AM – 1:00 PM in Mason).

Does the time difference between London and Mason change?

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