ChST – Chamorro Standard Time
ChST is UTC+10.
Chamorro Standard Time is used in Guam and the Northern Mariana Islands, US territories in the western Pacific. It doesn't use daylight saving time.
Because Guam is across the International Date Line, it's already tomorrow there for most of the US day.
Convert ChST to other time zones
When it's 12:00 PM ChST:
| Zone | Difference | Time |
|---|---|---|
| UTC (Coordinated Universal Time) | −10 h | 2:00 AM |
| EST (Eastern Standard Time) | −15 h | 9:00 PM |
| CST (Central Standard Time) | −16 h | 8:00 PM |
| PST (Pacific Standard Time) | −18 h | 6:00 PM |
| GMT (Greenwich Mean Time) | −10 h | 2:00 AM |
| CET (Central European Time) | −9 h | 3:00 AM |
| IST (India Standard Time) | −4.5 h | 7:30 AM |
| CST (China Standard Time) | −2 h | 10:00 AM |
| JST (Japan Standard Time) | −1 h | 11:00 AM |
| AEST (Australian Eastern Standard Time) | 0 h | 12:00 PM |
To convert a specific time and date, with daylight saving applied, use the time zone converter.
Questions people ask
What does ChST stand for?
ChST stands for Chamorro Standard Time, which is UTC+10.
How far ahead of the US East Coast is Guam?
15 hours ahead of Eastern Standard Time, or 14 hours when the East Coast is on daylight time.