Time difference
Chicago to San Diego Time Difference
San Diego is 2 hours behind Chicago — when it's 12:00 PM in Chicago, it's 10:00 AM in San Diego. (Chicago (America/Chicago, CDT); San Diego (America/Los_Angeles, PDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
San Diego is 2 hours behind Chicago. The best window for a call is 11 AM–5 PM in Chicago, which is 9 AM–3 PM in San Diego — a 6-hour overlap inside 9 AM–5 PM on both sides. Chicago and San Diego change their clocks together (or don't change at all), so the time difference between them stays the same all year.
- When it's 9:00 AM in Chicago, it's 7:00 AM in San Diego.
- When it's 9:00 AM in San Diego, it's 11:00 AM in Chicago.
San Diego is currently 2 hours behind Chicago.
Interactive converter
12:00PM
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Best times to meet
The 9 AM – 5 PM business windows in Chicago and San Diego overlap for 6 hours. 11 AM–5 PM in Chicago is 9 AM–3 PM in San Diego. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.
Quick conversion table
| Chicago | San Diego |
|---|---|
| 12 AM | 10:00 PM (prev day) |
| 1 AM | 11:00 PM (prev day) |
| 2 AM | 12:00 AM |
| 3 AM | 1:00 AM |
| 4 AM | 2:00 AM |
| 5 AM | 3:00 AM |
| 6 AM | 4:00 AM |
| 7 AM | 5:00 AM |
| 8 AM | 6:00 AM |
| 9 AM | 7:00 AM |
| 10 AM | 8:00 AM |
| 11 AM | 9:00 AM |
| 12 PM | 10:00 AM |
| 1 PM | 11:00 AM |
| 2 PM | 12:00 PM |
| 3 PM | 1:00 PM |
| 4 PM | 2:00 PM |
| 5 PM | 3:00 PM |
| 6 PM | 4:00 PM |
| 7 PM | 5:00 PM |
| 8 PM | 6:00 PM |
| 9 PM | 7:00 PM |
| 10 PM | 8:00 PM |
| 11 PM | 9:00 PM |
Daylight saving
On November 1, 2026, both Chicago and San Diego shift for daylight saving. After that, San Diego will be 2 hours behind Chicago (currently 2 hours behind Chicago). The converter and the tables above always reflect the correct offset for the date you pick.
- Chicago is currently observing daylight saving time.
- San Diego is currently observing daylight saving time.
Frequently asked questions
- Is San Diego ahead of or behind Chicago?
- San Diego is 2 hours behind Chicago.
- How many hours behind Chicago is San Diego?
- San Diego is 2 hours behind Chicago.
- What time is 9 AM in Chicago in San Diego?
- 9:00 AM in Chicago is 7:00 AM in San Diego.
- What time is noon in Chicago in San Diego?
- 12:00 PM in Chicago is 10:00 AM in San Diego.
- What time is 5 PM in Chicago in San Diego?
- 5:00 PM in Chicago is 3:00 PM in San Diego. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in Chicago in San Diego?
- 3:00 PM in Chicago is 1:00 PM in San Diego.
- Is Chicago currently observing daylight saving time?
- Chicago is currently observing daylight saving time (summer time).
- Is San Diego currently observing daylight saving time?
- San Diego is currently observing daylight saving time (summer time).
- Do Chicago and San Diego observe daylight saving?
- On November 1, 2026, both Chicago and San Diego shift for daylight saving. After that, San Diego will be 2 hours behind Chicago (currently 2 hours behind Chicago). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call San Diego from Chicago?
- Aim for 11 AM–5 PM in Chicago, which is 9 AM–3 PM in San Diego.
- When is the best time to call Chicago from San Diego?
- Aim for 9 AM–3 PM in San Diego, which is 11 AM–5 PM in Chicago.
- Chicago (CDT) to San Diego (PDT) — how do I convert quickly?
- Subtract 2 hours from Chicago local time to get San Diego local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- Chicago to New York
- Chicago to London
- Chicago to Tokyo
- Chicago to Dubai
- Chicago to Singapore
- Chicago to Los Angeles
- Chicago to Sydney
- Chicago to Paris
- Chicago to Mumbai
- Chicago to Hong Kong