This HST to EST converter turns any time in Hawaii Standard Time (HST) into Eastern Standard Time (EST), using your device clock so daylight saving is applied automatically. EST is 5 hours ahead of HST when both zones are on standard time, and 6 hours ahead during the summer months when clocks have shifted. HST is UTC−10; EST is UTC−5 (EDT: UTC−4).
HST covers Honolulu, Hilo; EST covers New York, Toronto, Miami. Because only EST observes daylight saving time, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
HST and EST UTC offsets
HST
UTC−10
Hawaii Standard Time
No daylight saving time
EST
UTC−5
Eastern Standard Time
EDT UTC−4 from March 8 to November 1, 2026
HST to EST conversion table (standard time)
| HST | EST |
|---|---|
| 12 am | 5 am |
| 3 am | 8 am |
| 6 am | 11 am |
| 8 am | 1 pm |
| 9 am | 2 pm |
| 10 am | 3 pm |
| 11 am | 4 pm |
| 12 pm | 5 pm |
| 1 pm | 6 pm |
| 2 pm | 7 pm |
| 3 pm | 8 pm |
| 4 pm | 9 pm |
| 5 pm | 10 pm |
| 6 pm | 11 pm |
| 8 pm | 1 amnext day |
| 10 pm | 3 amnext day |
HST to EST during daylight saving
Between the dates listed above, the difference is 6 hours instead of 5 hours.
| HST | EST/EDT |
|---|---|
| 12 am | 6 am |
| 3 am | 9 am |
| 6 am | 12 pm |
| 8 am | 2 pm |
| 9 am | 3 pm |
| 10 am | 4 pm |
| 11 am | 5 pm |
| 12 pm | 6 pm |
| 1 pm | 7 pm |
| 2 pm | 8 pm |
| 3 pm | 9 pm |
| 4 pm | 10 pm |
| 5 pm | 11 pm |
| 6 pm | 12 amnext day |
| 8 pm | 2 amnext day |
| 10 pm | 4 amnext day |
Frequently asked questions
What is the time difference between HST and EST?
EST is 5 hours ahead of HST on standard time. During daylight saving the gap changes to 6 hours. That comes from the UTC offsets: HST is UTC−10 and EST is UTC−5. For example, 9 am HST = 2 pm EST, and in summer 9 am HST = 3 pm EST.
Is EST ahead of or behind HST?
EST is 5 hours ahead of HST, so when it is noon in HST it is 5 pm in EST. Ahead means the clock there already shows a later time; a call at 5 pm HST lands at 10 pm EST.
Does HST or EST observe daylight saving time in 2026?
HST keeps UTC−10 all year. EST switches to EDT (UTC−4) on March 8 and back on November 1. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between HST and EST?
Standard office hours (9 am to 5 pm) overlap from 9 am to 12 pm HST, which is 2 pm to 5 pm EST. Pick a slot inside that window and both sides stay within a normal working day. Check the daylight saving dates above, because the window moves by an hour when only one side has changed clocks.
Which cities use HST and EST?
HST (Hawaii Standard Time) is used in Honolulu, Hilo. EST (Eastern Standard Time) is used in New York, Toronto, Miami, Atlanta. Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.