Singapore is 13 hours ahead of Chicago from mid-March to early November, and 14 hours the rest of the year.
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Quick reference
| SINGAPORE | CHICAGO · MID-MAR–EARLY NOV | CHICAGO · REST OF YEAR |
|---|---|---|
| 9:00 am | 8:00 pm previous day | 7:00 pm previous day |
| 12:00 pm | 11:00 pm previous day | 10:00 pm previous day |
| 3:00 pm | 2:00 am | 1:00 am |
| 6:00 pm | 5:00 am | 4:00 am |
| 9:00 pm | 8:00 am | 7:00 am |
Questions
13 hours from mid-March to early November, while Chicago is on Central Daylight Time (CDT). 14 hours the rest of the year, while Chicago is on Central Standard Time (CST).
8pm the previous day from mid-March to early November, and 7pm the previous day the rest of the year.
Only Chicago. It moves to CDT (UTC-5) in mid-March and back to CST (UTC-6) in early November. Singapore stays on Singapore Standard Time (SGT, UTC+8) all year.