No overlap — one side will join outside working hours
CDT (Chicago)
SGT (Singapore)
00:00
13:00Working
01:00
14:00Working
02:00
15:00Working
03:00
16:00Working
04:00
17:00
05:00
18:00
06:00
19:00
07:00
20:00
08:00
21:00
09:00Working
22:00off
10:00Working
23:00off
11:00Working
00:00+1doff
12:00Working
01:00+1doff
13:00Working
02:00+1doff
14:00Working
03:00+1doff
15:00Working
04:00+1doff
16:00Working
05:00+1doff
17:00
06:00+1d
18:00
07:00+1d
19:00
08:00+1d
20:00
09:00+1dWorking
21:00
10:00+1dWorking
22:00
11:00+1dWorking
23:00
12:00+1dWorking
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between cdt and sgt?
Central Daylight Time (cdt) is UTC-5 and Singapore Time (sgt) is UTC+8. The difference between them is 13 hours.
Where is cdt used?
Central Daylight Time (cdt) is used in USA and surrounding regions. The IANA timezone identifier is America/Chicago.
Where is sgt used?
Singapore Time (sgt) is used in Singapore and surrounding regions. The IANA timezone identifier is Asia/Singapore.
How do I convert cdt to sgt?
Use the interactive converter above. Drag the time slider to any cdt time and the sgt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
CDT (Chicago) is 13 hours behind SGT (Singapore). When it's noon in CDT (Chicago), it's 01:00 in SGT (Singapore).
CDT (Chicago) is in the America/Chicago timezone. SGT (Singapore) is in Asia/Singapore. The difference is 13 hours.
Mutual working hours
CDT (Chicago) and SGT (Singapore) have no shared working hours under a standard 9:00–17:00 schedule. One side will always need to join at an off-hour.
Recommended meeting windows
Since CDT (Chicago) and SGT (Singapore) don't share working hours, these are the most practical options available.
16:00 Chicago / 05:00 Singapore⚡ One side off-hours
⚠️ 4h before working hours in Singapore
20:00 Chicago / 09:00 Singapore⚡ One side off-hours
⚠️ 4h after working hours in Chicago
15:00 Chicago / 04:00 Singapore⚡ One side off-hours
⚠️ 5h before working hours in Singapore
Based on standard 09:00–17:00 working hours in each location's local time.
Public holidays this year
⚡ Upcoming holidays in both locations, confirm with your contact before booking.
CDT (Chicago)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
SGT (Singapore)3 holidays
Aug 10National Day
Nov 9Deepavali
Dec 25Christmas Day
CDT (Chicago) and SGT (Singapore) — practical scheduling
CDT (Chicago) (USA) and SGT (Singapore) (Singapore) are 13 hours apart — far enough that standard 9–5 schedules do not overlap. Any real-time meeting means someone is joining outside their normal hours.
💡 Practical scheduling guidelines
⚡
When CDT (Chicago) is at 16:00, SGT (Singapore) reads 05:00 — 4h before working hours in Singapore.
⚡
When CDT (Chicago) is at 20:00, SGT (Singapore) reads 09:00 — 4h after working hours in Chicago.
⚡
When CDT (Chicago) is at 15:00, SGT (Singapore) reads 04:00 — 5h before working hours in Singapore.
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.
Use the time slider above to find the exact equivalent time for any moment in CDT (Chicago). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.
