Singapore is 13 hours ahead of Chicago.
Time difference
Chicago is 13 to 14 hours behind Singapore, depending on daylight saving time. The gap changes by an hour when Chicago shifts its clocks for daylight saving time; Singapore stays on the same offset year-round.
Working hours
A standard 9-to-6 workday in Singapore does not overlap with Chicago. The least disruptive time to connect is around 08:00 in Singapore, which is 19:00 in Chicago.
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