Best Meeting Time: Chicago to Singapore
🕐 Live Timezone Overlap: Chicago & Singapore
Chicago and Singapore sit 13 hours apart, with Singapore ahead. That gap is not merely large; it effectively places the two cities on opposite ends of the working day. When Chicago opens at 9am, Singapore has already passed 10pm. Scheduling a live call requires at least one side to meet outside standard hours, so the first decision is always whose team carries that burden and how often the arrangement rotates.
Time Difference: Chicago and Singapore
Singapore is currently 13 hours ahead of Chicago. The live offsets are Chicago UTC-5 and Singapore UTC+8. Chicago observes daylight saving and Singapore does not, so the offset shifts twice a year if both sides aren't already aligned.
Singapore runs UTC+8 year-round and does not observe daylight saving time. Chicago observes US federal DST, shifting from UTC-6 in winter to UTC-5 in summer. That means the gap between Chicago and Singapore narrows from 14 hours in winter to 13 hours when Chicago moves to UTC-5. The change happens twice a year on US DST changeover weekends, so anyone with a recurring meeting series needs to review start times each March and November.
Best Times to Meet
There is no overlap between standard 9am-6pm working hours in Chicago and Singapore. None at all. When Singapore's working day ends at 6pm, it is 5am in Chicago. The only practical slots require compromise: an early evening call for Singapore (around 7pm-9pm local) pairs with a 6am-8am start in Chicago. Trading desks at CME and CBOE begin at 7am Central, so Chicago finance teams may find an early start more tolerable than colleagues in other sectors.
Working Hours Overlap Explained
Chicago operates on America/Chicago (currently UTC-5). Singapore operates on Asia/Singapore (currently UTC+8). The table below maps a standard 9:00 AM–6:00 PM day in Chicago to Singapore's local time.
| Chicago time | Singapore time | Status |
|---|---|---|
| 9:00 AM | 10:00 PM | Singapore outside hours |
| 10:00 AM | 11:00 PM | Singapore outside hours |
| 11:00 AM | 12:00 AM | Singapore outside hours |
| 12:00 PM | 1:00 AM | Singapore outside hours |
| 1:00 PM | 2:00 AM | Singapore outside hours |
| 2:00 PM | 3:00 AM | Singapore outside hours |
| 3:00 PM | 4:00 AM | Singapore outside hours |
| 4:00 PM | 5:00 AM | Singapore outside hours |
| 5:00 PM | 6:00 AM | Singapore outside hours |
| 6:00 PM | 7:00 AM | Singapore outside hours |
Tips for Scheduling Across Chicago and Singapore
- Rotate the out-of-hours burden: alternate who takes the early or late call each week.
- Chicago's 7am CME and CBOE trading culture makes a 7am Central start more accepted in finance teams.
- During US winter, the gap widens to 14 hours; adjust your recurring Singapore calls by one hour each March.
- Singapore's Chinese New Year holiday often extends beyond the two public days; confirm availability in advance.
- Chicago's remote-work bias from December through February can increase scheduling flexibility for early-morning calls.
Public Holidays and Working Weeks
Both cities follow a Monday-to-Friday working week with 9am-6pm hours as the standard. Chicago's major public holidays include Independence Day on 4 July, Thanksgiving on the fourth Thursday in November, and Christmas Day on 25 December. Singapore observes Chinese New Year in January or February, National Day on 9 August, and Deepavali in October or November. Cross-city meetings should account for both calendars, particularly around Chinese New Year when extended absences in Singapore are common.