Mount Prospect to Porto time converter

Porto is 6 hours ahead of Mount Prospect. When it is 9:00 AM in Mount Prospect, it is 3:00 PM in Porto.

Mount Prospect CDT

Monday, October 19, 2026

Porto WEST

Monday, October 19, 2026

Illinois, United States
Mon, Oct 19
CDTUTC-5
Portugal
Mon, Oct 19
WESTUTC+1+6h
Finding your time zone…

9:03 AM in Mount Prospect, Monday, October 19, 2026

Shared working hours (9:00–18:00)

Mount Prospect to Porto conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 12:00 PM in Mount Prospect (3:00 PM – 6:00 PM in Porto).

Daylight saving time and the difference

The difference changes during the year because Mount Prospect and Porto switch clocks on different dates:

  • Oct 19, 2026 – Oct 24, 2026: +6h
  • Oct 24, 2026 – Nov 1, 2026: +5h
  • Nov 1, 2026 – Mar 14, 2027: +6h
  • Mar 14, 2027 – Mar 27, 2027: +5h
  • Mar 27, 2027 – Oct 19, 2027: +6h

Distance

Mount Prospect and Porto are 6,340 km (3,939 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Mount Prospect and Porto?

Porto is 6 hours ahead of Mount Prospect.

What time is it in Porto when it is 9 AM in Mount Prospect?

When it is 9:00 AM in Mount Prospect, it is 3:00 PM in Porto.

When is the best time to call Porto from Mount Prospect?

Both sides are at work from 9:00 AM – 12:00 PM in Mount Prospect (3:00 PM – 6:00 PM in Porto).

Does the time difference between Mount Prospect and Porto change?

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