Chicago to Castro Valley time converter
Castro Valley is 2 hours behind Chicago. When it is 9:00 AM in Chicago, it is 7:00 AM in Castro Valley.
Chicago CDT
Sunday, October 18, 2026
Castro Valley PDT
Sunday, October 18, 2026
10:51 PM in Chicago, Sunday, October 18, 2026
Chicago to Castro Valley conversion table
Every hour of today in Chicago and the matching time in Castro Valley. Light rows are typical working hours (9:00–18:00).
| Chicago | Castro Valley |
|---|---|
| 12:00 AM | 10:00 PM−1 day |
| 1:00 AM | 11:00 PM−1 day |
| 2:00 AM | 12:00 AM |
| 3:00 AM | 1:00 AM |
| 4:00 AM | 2:00 AM |
| 5:00 AM | 3:00 AM |
| 6:00 AM | 4:00 AM |
| 7:00 AM | 5:00 AM |
| 8:00 AM | 6:00 AM |
| 9:00 AM | 7:00 AM |
| 10:00 AM | 8:00 AM |
| 11:00 AM | 9:00 AM |
| 12:00 PM | 10:00 AM |
| 1:00 PM | 11:00 AM |
| 2:00 PM | 12:00 PM |
| 3:00 PM | 1:00 PM |
| 4:00 PM | 2:00 PM |
| 5:00 PM | 3:00 PM |
| 6:00 PM | 4:00 PM |
| 7:00 PM | 5:00 PM |
| 8:00 PM | 6:00 PM |
| 9:00 PM | 7:00 PM |
| 10:00 PM | 8:00 PM |
| 11:00 PM | 9:00 PM |
Best time to call or meet
Both sides are at work from 11:00 AM – 6:00 PM in Chicago (9:00 AM – 4:00 PM in Castro Valley).
Daylight saving time and the difference
The difference changes during the year because Chicago and Castro Valley switch clocks on different dates:
- Oct 18, 2026 – Nov 1, 2026: -2h
- Nov 1, 2026 – Nov 1, 2026: -1h
- Nov 1, 2026 – Mar 14, 2027: -2h
- Mar 14, 2027 – Mar 14, 2027: -3h
- Mar 14, 2027 – Oct 18, 2027: -2h
Distance
Chicago and Castro Valley are 2,959 km (1,839 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Chicago and Castro Valley?
Castro Valley is 2 hours behind Chicago.
What time is it in Castro Valley when it is 9 AM in Chicago?
When it is 9:00 AM in Chicago, it is 7:00 AM in Castro Valley.
When is the best time to call Castro Valley from Chicago?
Both sides are at work from 11:00 AM – 6:00 PM in Chicago (9:00 AM – 4:00 PM in Castro Valley).
Does the time difference between Chicago and Castro Valley change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.