Chicago to San Juan Time Difference
🇺🇸 Chicago is currently 1 hour ahead of 🇵🇷 San Juan. This difference varies between 1h and 2h due to Daylight Saving Time.
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Atin 🇺🇸 Chicago→it will be—in 🇵🇷 San Juan
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Difference
+1h
Business overlap
8h
Distance
3,305 km
Approx. flight
3.9h
Hour-by-Hour: Chicago to San Juan
| 🇺🇸 Chicago | 🇵🇷 San Juan | Note |
|---|---|---|
| 12:00 AM | 1:00 AM | |
| 1:00 AM | 2:00 AM | |
| 2:00 AM | 3:00 AM | |
| 3:00 AM | 4:00 AM | |
| 4:00 AM | 5:00 AM | |
| 5:00 AM | 6:00 AM | |
| 6:00 AM | 7:00 AM | |
| 7:00 AM | 8:00 AM | |
| 8:00 AM | 9:00 AM | |
| 9:00 AM | 10:00 AM | |
| 10:00 AM | 11:00 AM | |
| 11:00 AM | 12:00 PM | |
| 12:00 PM | 1:00 PM | |
| 1:00 PM | 2:00 PM | |
| 2:00 PM | 3:00 PM | |
| 3:00 PM | 4:00 PM | |
| 4:00 PM | 5:00 PM | |
| 5:00 PM | 6:00 PM | |
| 6:00 PM | 7:00 PM | |
| 7:00 PM | 8:00 PM | |
| 8:00 PM | 9:00 PM | |
| 9:00 PM | 10:00 PM | |
| 10:00 PM | 11:00 PM | |
| 11:00 PM | 12:00 AM(next day) | Next day |
Daylight Saving Time (DST)
Chicago observes Daylight Saving Time, while San Juan does not. This causes the time difference to shift between 1 hour ahead and 2 hours ahead depending on the season. Currently, Chicago is 1 hour ahead relative to San Juan.
Min difference
1h
Max difference
2h
Best Meeting Times
There are 8 overlapping business hours between Chicago and San Juan (9 AM – 6 PM in each city).
🇺🇸 Chicago
9:00 AM – 5:00 PM
🇵🇷 San Juan
10:00 AM – 6:00 PM
Frequently Asked Questions
What is the time difference between Chicago and San Juan?
The time difference between Chicago and San Juan is currently 1 hour ahead. Chicago uses CDT (UTC-5), while San Juan uses AST (UTC-4). This difference varies seasonally due to Daylight Saving Time, ranging from 1 hour ahead to 2 hours ahead.
When it's noon in Chicago, what time is it in San Juan?
When it's 12:00 PM (noon) in Chicago, it is 1:00 PM in San Juan. Use our calculator above to convert any other time.
Does the time difference between Chicago and San Juan change?
Yes, the time difference changes throughout the year. Because Chicago observes Daylight Saving Time, the offset shifts between 1 hour ahead and 2 hours ahead at different times of the year.
What are the best times to schedule a call between Chicago and San Juan?
The best time to call is between 9:00 AM and 5:00 PM in Chicago (which is 10:00 AM – 6:00 PM in San Juan). This 8-hour window falls within business hours in both cities.
Is Chicago ahead or behind San Juan?
Chicago is currently 1 hour behind San Juan.
What time zone is Chicago in?
Chicago is in the America/Chicago time zone, currently using CDT (UTC-5). Chicago observes Daylight Saving Time, so the offset changes twice a year.
What time is midnight in Chicago in San Juan?
When it is midnight (12:00 AM) in Chicago, it is 1:00 AM in San Juan.