| Hawaii Aleutian Daylight Time is abbreviated as | HADT |
| HADT Time Zone Description | Hawaii Aleutian Daylight Time |
| HADT Time Zone Offset | UTC−09 Hours |
| HADT is a daylight time. HADT Daylight Saving Time Starts by | NA |
| HADT Daylight Saving Time Ends by | NA |
| Corresponding Winter Time for HADT | Hawaii Aleutian Standard Time (HAST) |
| What to do when Daylight Saving Time Ends in HADT | Clocks to be reversed by 1 hour |
| Countries following HADT in Summer & HAST in Winter | Aleutian Islands |
| Cities following HADT in Summer & HAST in Winter | Honolulu, Unalaska |
| Other Time Zones with same UTC offset as HADT | AKST |