Exact time with seconds in Guam and timezones

The time zone for Guam is Guam Standard Time (GST), which is 10 hours ahead of Coordinated Universal Time (UTC). This time zone is used throughout the majority of the year, and the only time it is not observed is during Daylight Saving Time. During Daylight Saving Time, Guam Standard Time is shifted forward an hour and is 9 hours ahead of UTC (UTC+9).