HST to EEST Converter
Time Difference
Hawaii Standard Time is 13 hours behind Eastern European Summer Time
12:00 am00:00 in HST is 1:00 pm13:00 in EEST
HST to EEST call time
Best time for a conference call or a meeting is between 6:30am-8:30am in HST which corresponds to 7:30pm-9:30pm in EEST
12:00 am00:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours
1:00 pm13:00 Eastern European Summer Time (EEST). Offset UTC +3:00 hours
12:00 am00:00 HST / 1:00 pm13:00 EEST
HST | EEST |
---|---|
12am (midnight) | 1pm |
1am | 2pm |
2am | 3pm |
3am | 4pm |
4am | 5pm |
5am | 6pm |
6am | 7pm |
7am | 8pm |
8am | 9pm |
9am | 10pm |
10am | 11pm |
11am | 12am (midnight) |
12pm (noon) | 1am |
1pm | 2am |
2pm | 3am |
3pm | 4am |
4pm | 5am |
5pm | 6am |
6pm | 7am |
7pm | 8am |
8pm | 9am |
9pm | 10am |
10pm | 11am |
11pm | 12pm (noon) |
0:00 | 13:00 |
1:00 | 14:00 |
2:00 | 15:00 |
3:00 | 16:00 |
4:00 | 17:00 |
5:00 | 18:00 |
6:00 | 19:00 |
7:00 | 20:00 |
8:00 | 21:00 |
9:00 | 22:00 |
10:00 | 23:00 |
11:00 | 0:00 |
12:00 | 1:00 |
13:00 | 2:00 |
14:00 | 3:00 |
15:00 | 4:00 |
16:00 | 5:00 |
17:00 | 6:00 |
18:00 | 7:00 |
19:00 | 8:00 |
20:00 | 9:00 |
21:00 | 10:00 |
22:00 | 11:00 |
23:00 | 12:00 |
Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific
Countries: It is used in following countries: United States
Principal Cities: The largest city in the HST timezone is Honolulu from USA with population about 371,657 people. Other major cities in the area are Pearl City, Hilo, Kailua, Waipahu
Daylight Saving: Hawaii Standard Time (HST) is not adjusted for daylight saving therefore HST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Hawaii Standard Time remains the same

HST representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the west of the zero meridian.
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
- America/Adak
- America/Atka
- HST
- Pacific/Honolulu
- Pacific/Johnston
- US/Aleutian
- US/Hawaii
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone
Eastern European Summer Time
Offset: EEST is 3 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Åland Islands, Bulgaria, Cyprus, Estonia, Egypt, Finland, Greece, Lebanon, Lithuania, Latvia, Moldova, Palestine, Romania, Ukraine
Principal Cities: The largest city in the EEST timezone is Cairo from Egypt with population about 7.735 million people. Other major cities in the area are Alexandria, Kiev, Al Jizah, Beirut
German: OESZ - Osteuropäische Sommerzeit

Daylight Saving: Eastern European Summer Time (EEST) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Eastern European Time (EET).
Start: Eastern European Summer Time (EEST) started on Sunday, March 30, 2025 at 3:00 am local time and clocks were set one hour forward to Sunday, March 30, 2025, 4:00 am. Daylight saving starts annually the on last Sunday of March
End: Eastern European Summer Time (EEST) ends on Sunday, October 26, 2025 at 4:00 am local time and clocks are set one hour back to Sunday, October 26, 2025, 3:00 am local standard time instead. Daylight saving ends annually the on last Sunday of October
EEST representations, usage and related time zones
- +03 - basic short
- +0300 - basic
- +03:00 - extended
- +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates three hour and zero minutes time differences to the east of the zero meridian.
- Charlie - Military abbreviation for EEST
- C - short form of 'Charlie'
- Africa/Cairo
- Asia/Beirut
- Asia/Famagusta
- Asia/Gaza
- Asia/Hebron
- Asia/Nicosia
- EET
- Egypt
- Europe/Athens
- Europe/Bucharest
- Europe/Chisinau
- Europe/Helsinki
- Europe/Kiev
- Europe/Kyiv
- Europe/Mariehamn
- Europe/Nicosia
- Europe/Riga
- Europe/Sofia
- Europe/Tallinn
- Europe/Tiraspol
- Europe/Uzhgorod
- Europe/Vilnius
- Europe/Zaporozhye
- EEST - Eastern European Summer Time
- MSK - Moscow Standard Time
- AST - Arabia Standard Time
- C - Charlie Time Zone
- EAT - Eastern Africa Time
- FET - Further Eastern European Time
- IDT - Israel Daylight Time
- TRT - Turkey Time