Live · calculated from the IANA time-zone database
Time difference between Chicago and Singapore
Short answer
Singapore is 13 hours ahead of Chicago. Right now it is 07:34 in Chicago (CDT, UTC−5) and 20:34 in Singapore (GMT+8, UTC+8).
Right now
Chicago · United States
07:34
Tuesday, September 15, 2026
Central Daylight Time · CDT · UTC−5
Singapore · Singapore
20:34
Tuesday, September 15, 2026
Singapore Standard Time · GMT+8 · UTC+8
Times at the moment this page was generated. Reload for a fresh reading.
Does the difference between Chicago and Singapore change during the year?
Yes. For 238 days of 2026 the difference is 13 hours, but it moves whenever Chicago or Singapore enters or leaves daylight saving time. Here is the full 2026 calendar (dates in UTC):
| From | Until | Singapore vs Chicago |
|---|---|---|
| January 1 | March 8 | +14 h |
| March 8 | November 1 | +13 h |
| November 1 | December 31 | +14 h |
The highlighted row is the current period. Every date comes from each zone's official rules, not from a hand-typed table.
Best time to call Singapore from Chicago (and vice versa)
With 13 hours between them there is no hour at which Chicago and Singapore are both inside a 9:00–17:00 working day. Teams split across these two cities usually alternate the sacrifice: one week the meeting lands early (7:00–8:00) in Chicago and late (18:00–19:00) in the other city, the next week the other way round. The Timezone Matcher grid shades exactly those compromise hours.
Chicago to Singapore conversion table
Each Chicago hour and its equivalent in Singapore today. Rows shaded green are working hours (9:00–17:00) in both cities at once.
| Chicago time · Tue, Sep 15 | Singapore time |
|---|---|
| 00:00 | 13:00 |
| 01:00 | 14:00 |
| 02:00 | 15:00 |
| 03:00 | 16:00 |
| 04:00 | 17:00 |
| 05:00 | 18:00 |
| 06:00 | 19:00 |
| 07:00 | 20:00 |
| 08:00 | 21:00 |
| 09:00 | 22:00 |
| 10:00 | 23:00 |
| 11:00 | 00:00next day |
| 12:00 | 01:00next day |
| 13:00 | 02:00next day |
| 14:00 | 03:00next day |
| 15:00 | 04:00next day |
| 16:00 | 05:00next day |
| 17:00 | 06:00next day |
| 18:00 | 07:00next day |
| 19:00 | 08:00next day |
| 20:00 | 09:00next day |
| 21:00 | 10:00next day |
| 22:00 | 11:00next day |
| 23:00 | 12:00next day |
Looking for it the other way round? This page covers both directions: Singapore to Chicago is the same difference with the sign flipped.
The two time zones
Chicago — America/Chicago
Chicago follows Central Time (CT): UTC−6 in winter (CST) and UTC−5 in summer (CDT), shared with Dallas, Houston and most of the US Midwest and South.
Singapore — Asia/Singapore
Singapore runs on UTC+8 all year, the same offset as Hong Kong, Shanghai, Kuala Lumpur, Manila and Perth — the busiest single time zone on Earth.
Frequently asked questions
How many hours difference between Chicago and Singapore?
Singapore is 13 hours ahead of Chicago. For most of the year (238 days) the difference is 13 hours; it shifts during the weeks when one of the two cities enters or leaves daylight saving time.
When it is 12:00 noon in Chicago, what time is it in Singapore?
01:00 in Singapore the next day (at today's difference of 13 hours).
What is the best time for a meeting between Chicago and Singapore?
There is no overlap between the 9:00–17:00 working days of Chicago and Singapore. Teams usually alternate: an early-morning slot in Chicago lands in the late evening of the other city.
Do Chicago and Singapore observe daylight saving time?
Chicago: yes. Singapore: no. Because only one of them changes its clocks, the difference moves by one hour twice a year.
What time zone is Chicago in? And Singapore?
Chicago: Central Daylight Time (America/Chicago, UTC−5). Singapore: Singapore Standard Time (Asia/Singapore, UTC+8).
Tools
Meeting grid — add both cities and click a slot
Time zone converter — any city, any time
Working hours overlap calculator
Daylight saving time 2027 — all dates
More time differences from Chicago
More time differences from Singapore
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