Time difference between Tamuning-Tumon-Harmon Village and Chicago

Chicago is 15 hours behind Tamuning-Tumon-Harmon Village.

Pacific/Guam America/Chicago same day

Local time in both cities

21:23
Monday, 21 September 2026
Pacific/Guam · UTC+10:00
Chicago · United States
06:23
Monday, 21 September 2026
America/Chicago · UTC-05:00

Chicago is 15 hours behind Tamuning-Tumon-Harmon Village.

same day

Time zones

Tamuning-Tumon-Harmon VillagePacific/Guam · UTC+10:00
ChicagoAmerica/Chicago · UTC-05:00

Tamuning-Tumon-Harmon Village does not observe daylight saving and stays on UTC+10:00 all year.

Chicago is currently on daylight saving time (UTC-05:00). Next change: 2026-11-01 01:00.

Hour-by-hour conversion

Calculated for 2026-09-21 local time in Tamuning-Tumon-Harmon Village. The two places start and end daylight saving on different dates, so another day can give a different result.

Tamuning-Tumon-Harmon Village (source) Chicago (target)
00:00 09:00 prev day
01:00 10:00 prev day
02:00 11:00 prev day
03:00 12:00 prev day
04:00 13:00 prev day
05:00 14:00 prev day
06:00 15:00 prev day
07:00 16:00 prev day
08:00 17:00 prev day
09:00 18:00 prev day
10:00 19:00 prev day
11:00 20:00 prev day
12:00 21:00 prev day
13:00 22:00 prev day
14:00 23:00 prev day
15:00 00:00
16:00 01:00
17:00 02:00
18:00 03:00
19:00 04:00
20:00 05:00
21:00 06:00
22:00 07:00
23:00 08:00

FAQ

How many hours apart are Tamuning-Tumon-Harmon Village and Chicago right now?
The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
Is this difference the same all year?
Not necessarily. Tamuning-Tumon-Harmon Village uses Pacific/Guam and Chicago uses America/Chicago; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
How do I read the conversion table?
The left column lists each whole hour in Tamuning-Tumon-Harmon Village; the right column is the local time in Chicago at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.

Both cities