Convert any time between EET and HST, with a full 24-hour table and the hours when both sides are actually at work.

EET to HST Time Converter

HST is 13 hours behind EET. Eastern Europe is currently on EEST (UTC+3:00), and HST is UTC-10:00.

Worth knowing right now. Eastern Europe is currently on EEST, not EET, because daylight saving is in effect. The 13 hours above is the gap between those two regions today, which is almost certainly what you want. Taken strictly as written, EET to HST is 12 hours.
EET
Eastern European Time
06:03:48 PM
Sunday, October 11, 2026
UTC+3:00
-13:00
hours difference
⇆ Reverse
HST
Hawaii Standard Time
05:03:48 AM
Sunday, October 11, 2026
UTC-10:00

Best Time to Call Between EET and HST

Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 11:00 AM EET, which is 6:00 PM to 10:00 PM HST.

both at work EET only HST only neither  —  hours along the strip are EET.

EET to HST: Full 24-Hour Conversion Table

Shaded rows are working hours; the darker shade marks the hours when both zones are at work.

EETHSTWorking hours
12:00 AM 11:00 AM prev day HST only
1:00 AM 12:00 PM prev day HST only
2:00 AM 1:00 PM prev day HST only
3:00 AM 2:00 PM prev day HST only
4:00 AM 3:00 PM prev day HST only
5:00 AM 4:00 PM prev day HST only
6:00 AM 5:00 PM prev day —
7:00 AM 6:00 PM prev day —
8:00 AM 7:00 PM prev day —
9:00 AM 8:00 PM prev day EET only
10:00 AM 9:00 PM prev day EET only
11:00 AM 10:00 PM prev day EET only
12:00 PM 11:00 PM prev day EET only
1:00 PM 12:00 AM EET only
2:00 PM 1:00 AM EET only
3:00 PM 2:00 AM EET only
4:00 PM 3:00 AM EET only
5:00 PM 4:00 AM —
6:00 PM 5:00 AM —
7:00 PM 6:00 AM —
8:00 PM 7:00 AM —
9:00 PM 8:00 AM —
10:00 PM 9:00 AM HST only
11:00 PM 10:00 AM HST only

What EET and HST Actually Are

EET — Eastern European Time

Athens, Helsinki, Bucharest, Kyiv, Cairo, Beirut. Standing at UTC+2:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, October 25, 2026, to EET.

Eastern European Time is where the EU's synchronized clock changes meet countries that set their own dates, so the boundary between EET and its neighbors is less tidy than it looks.

HST — Hawaii Standard Time

Honolulu and the rest of Hawaii. Standing at UTC-10:00 as written, and the region does not change its clocks, so that offset holds all year. Hawaii does not observe daylight saving, so this offset holds all year.

Hawaii dropped daylight saving in 1967 and never resumed it. Being close to the equator, its daylight barely varies across the year, so there is little to gain.

What This Means in Practice

The date changes mid-working-day

For 4 of the eight hours in a normal EET working day, the equivalent HST time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.

This gap is not fixed

EET changes its clocks and HST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, October 25, 2026 unless someone resets it.

Nearly opposite sides of the clock

At 13 hours apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.

Frequently Asked Questions

What is the time difference between EET and HST?

HST is 13 hours behind EET. That is the live figure. Taken strictly as written, the gap between EET and HST is 12 hours — the two differ because at least one of these regions is currently on daylight saving.

What is 9:00 AM EET in HST?

9:00 AM EET is 8:00 PM the previous day HST.

What are the best hours to schedule a call between EET and HST?

Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 7:00 AM to 11:00 AM EET, which is 6:00 PM to 10:00 PM HST.

Does the difference between EET and HST change during the year?

Yes. EET observes daylight saving and HST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, October 25, 2026.

Does HST always mean Hawaii Standard Time?

Hawaii does not observe daylight saving, so this offset holds all year.

Converting between two time zones regularly? Bookmark this page — the clocks update live and the table follows daylight saving automatically.