HAST timing
HAST (Hawaii-Aleutian Standard Time) is one of the well-known names of UTC-10 time zone which is 10h. behind of UTC (Coordinated Universal Time).The time offset from UTC can be written as -10:00.
It's used during the winter. During the summer HADT - Hawaii-Aleutian Daylight Time (UTC-9) is in use.
Some locations use HAST all year long.
Time difference to GMT/UTC
10 hours behind (UTC-10)