EEST to HST
-13hEEST
EESTSOURCEHST
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
EEST and HST on the World Map
The map below highlights the EEST (Eastern European Summer Time) and HST (Hawaii Standard Time) timezone regions across the globe.
EEST – Eastern European Summer Time
UTC+03:00Eastern European Summer Time (EEST, UTC+03:00) is the daylight saving period across eastern Europe, from late March to late October.
- •EEST runs from the last Sunday in March to the last Sunday in October.
- •EEST is one hour ahead of Eastern European Time (EET, UTC+02:00).
- •During EEST, eastern Europe is level with Moscow, Istanbul and Riyadh.
- •EEST follows the EU-wide summer time schedule.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •Hawaii does not observe daylight saving time.
- •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
- •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
EEST vs HST: Offsets, DST and Best Call Times
EEST runs on Eastern European Summer Time (EEST) at UTC+03:00. HST runs on Hawaii Standard Time (HST) at UTC-10:00. That puts EEST 13 hours behind HST — a difference of -13h at the current offsets.
In practice, when it is 9:00 AM in EEST it is 8:00 PM in HST on the previous day. Midnight in EEST is 11:00 AM in HST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EEST to HST time conversion table
| EEST (EEST) | HST (HST) | Day |
|---|---|---|
| 12:00 AM | 11:00 AM | previous day |
| 6:00 AM | 5:00 PM | previous day |
| 7:00 AM | 6:00 PM | previous day |
| 8:00 AM | 7:00 PM | previous day |
| 9:00 AM | 8:00 PM | previous day |
| 12:00 PM | 11:00 PM | previous day |
| 3:00 PM | 2:00 AM | same day |
| 5:00 PM | 4:00 AM | same day |
| 6:00 PM | 5:00 AM | same day |
| 9:00 PM | 8:00 AM | same day |
Why people convert EEST to HST time
- Scheduling a call from EEST to HST: a 10:00 AM start in EEST lands at 9:00 PM in HST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -13h gap: EEST and HST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in HST is 8:00 PM in EEST.
- Keeping family and friends in sync: knowing that 8:00 PM in EEST is 7:00 AM in HST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM EEST" is unambiguous; "3 PM" across a -13h gap is not.
- With a -13h gap there is no shared 9-to-5 window, so alternate the early start: one week EEST takes the early slot, the next week HST does.
About EEST (Eastern European Summer Time)
Eastern European Summer Time (EEST) is the daylight saving period used across eastern Europe, when clocks move one hour forward from Eastern European Time (EET, UTC+02:00) to UTC+03:00. It runs from the last Sunday in March to the last Sunday in October, in step with the rest of the European Union. EEST covers Greece, Finland, Romania, Bulgaria, the Baltic states, Ukraine and Moldova, and matches the offset used year-round by Moscow, Istanbul and Riyadh during those months. Athens and Helsinki both sit near the western edge of the EEST band, so summer evenings stay light well past 21:00.
About HST (Hawaii Standard Time)
Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.
Best time to call between EEST and HST
With a -13h offset there is no overlap inside a normal 9 AM – 5 PM day. HST opens at 9:00 AM HST, which is 8:00 PM in EEST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
EEST and HST have no shared working hours because of the -13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
EEST is 13 hours behind HST (EEST UTC+03:00 → HST UTC-10:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EEST
☀ Currently in DST
Standard: UTC+02:00 · DST: UTC+03:00
Clocks fall back on Sun, Oct 25, 2026
HST
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between EEST and HST?
EEST (EEST, UTC+03:00) is 13 hours behind HST (HST, UTC-10:00). The gap is currently -13h.
How do I convert EEST time to HST time?
Add -13h to EEST local time. For example, 9:00 AM in EEST is 8:00 PM in HST (previous day).
What time is it in HST right now?
HST uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h offset from EEST.
What is the best time to call HST from EEST?
There is no shared working-hours window because of the -13h gap. The closest option is 1:00 PM in EEST, which is 12:00 AM in HST.
Which is behind, EEST or HST?
EEST is 13 hours behind HST. When it is 12:00 PM in EEST it is 11:00 PM in HST.
Does daylight saving time affect the EEST–HST difference?
Neither zone observes daylight saving time, so the -13h offset between EEST and HST is fixed all year.
Which other cities share EEST's time zone?
EEST also covers Athens, Helsinki, Bucharest, Sofia, Kyiv, Riga.
Which countries use EEST, EEST's zone?
EEST is used in Greece, Finland, Romania, Bulgaria, Estonia, Latvia, Lithuania, Ukraine and 2 more.
Is there a day difference between EEST and HST?
Sometimes. The -13h gap is large enough that 8:00 PM or later in EEST already falls on the in HST.
What is the time difference between EEST and HST?
HST is -13h from EEST.
What timezone is EEST in?
EEST operates on its local timezone.
What timezone is HST in?
HST operates on its local timezone.
Which countries use EEST (Eastern European Summer Time)?
EEST is used in Greece, Finland, Romania, Bulgaria, Estonia, Latvia, and 4 more countries.
Does EEST observe daylight saving time?
Yes, EEST switches to EEST during summer months.
What are some interesting facts about EEST?
EEST runs from the last Sunday in March to the last Sunday in October. EEST is one hour ahead of Eastern European Time (EET, UTC+02:00).
Which cities are in the HST timezone?
Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.
What is the UTC offset for HST?
Hawaii Standard Time (HST) is at UTC-10:00.
What should I know about the HST timezone?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
When is it midnight in EEST, what time is it in HST?
When it is 12:00 AM (midnight) in EEST (EEST), it is -13h later in HST (HST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More EEST time conversions
- eest to athens
- eest to eet
- eest to greece
- eest to new york
- eest to london
- eest to dubai
- eest to tokyo
- eest to singapore
- eest to sydney
- eest to los angeles
- eest to paris
- eest to delhi
- eest to mumbai
- eest to berlin
- eest to hong kong
- eest to toronto
- eest to kathmandu
- new york to eest
- london to eest
- dubai to eest
- tokyo to eest
- singapore to eest
- sydney to eest
- los angeles to eest
- paris to eest
- delhi to eest
- mumbai to eest
- berlin to eest
- hong kong to eest
- toronto to eest
- kathmandu to eest
See every conversion from EEST →·See every conversion from HST →