Chicago to Mason time converter

Mason is 1 hour ahead of Chicago. When it is 9:00 AM in Chicago, it is 10:00 AM in Mason.

Chicago CDT

Saturday, October 17, 2026

Mason EDT

Saturday, October 17, 2026

Chicago
Illinois, United States
Sat, Oct 17
CDTUTC-5
Mason
Ohio, United States
Sat, Oct 17
EDTUTC-4+1h
Finding your time zone…
Shared working hours (9:00–18:00)

Chicago to Mason conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 5:00 PM in Chicago (10:00 AM – 6:00 PM in Mason).

Daylight saving time and the difference

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

  • Oct 17, 2026 – Nov 1, 2026: +1h
  • Nov 1, 2026 – Nov 1, 2026: ±0
  • Nov 1, 2026 – Mar 14, 2027: +1h
  • Mar 14, 2027 – Mar 14, 2027: +2h
  • Mar 14, 2027 – Oct 17, 2027: +1h

Distance

Chicago and Mason are 395 km (245 miles) apart in a straight line.

More conversions

Mason 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 MasonLondon to MasonLos Angeles 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 Chicago and Mason?

Mason is 1 hour ahead of Chicago.

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

When it is 9:00 AM in Chicago, it is 10:00 AM in Mason.

When is the best time to call Mason from Chicago?

Both sides are at work from 9:00 AM – 5:00 PM in Chicago (10:00 AM – 6:00 PM in Mason).

Does the time difference between Chicago 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.