Time Difference Between Chicago and Guam
Chicago is 15h 0m behind Guam. This difference shifts by an hour around daylight saving time changes.
Best time to connect
Standard working hours (9:00 AM–5:00 PM) in Chicago fall between 12:00 AM (next day) and 8:00 AM (next day) in Guam.
Frequently asked questions
- How many hours is Guam ahead of Chicago?
- Chicago is 15h 0m behind Guam. Note that this changes by an hour across daylight saving time transitions.
- Do Chicago and Guam observe daylight saving time?
- Chicago observes daylight saving time, and Guam does not observe it. Because of that, the gap is 16h 0m for part of the year and 15h 0m for the rest.