CEST to HST Converter
Convert Central European Summer Time (CEST) to Hawaii Standard Time (HST) in one step. Because hST is 12 hours behind CEST, the math is a fixed 12 hours shift. Adjust the time or date and watch it update.
Daylight saving notes
In the European Union and the UK, summer time runs from the last Sunday in March to the last Sunday in October. That affects Central European Summer Time (CEST).
CEST to HST conversion chart
For example, a 9:00 AM CEST meeting takes place at 9:00 PM HST (−1 day). Concretely, when Paris (CEST) and Honolulu (HST) set up a call, hST is 12 hours behind CEST.
| CEST time | HST time |
|---|---|
| 12:00 AM | 12:00 PM−1 day |
| 1:00 AM | 1:00 PM−1 day |
| 2:00 AM | 2:00 PM−1 day |
| 3:00 AM | 3:00 PM−1 day |
| 4:00 AM | 4:00 PM−1 day |
| 5:00 AM | 5:00 PM−1 day |
| 6:00 AM | 6:00 PM−1 day |
| 7:00 AM | 7:00 PM−1 day |
| 8:00 AM | 8:00 PM−1 day |
| 9:00 AM | 9:00 PM−1 day |
| 10:00 AM | 10:00 PM−1 day |
| 11:00 AM | 11:00 PM−1 day |
| 12:00 PM | 12:00 AM |
| 1:00 PM | 1:00 AM |
| 2:00 PM | 2:00 AM |
| 3:00 PM | 3:00 AM |
| 4:00 PM | 4:00 AM |
| 5:00 PM | 5:00 AM |
| 6:00 PM | 6:00 AM |
| 7:00 PM | 7:00 AM |
| 8:00 PM | 8:00 AM |
| 9:00 PM | 9:00 AM |
| 10:00 PM | 10:00 AM |
| 11:00 PM | 11:00 AM |
This chart uses the fixed CEST and HST offsets; the live converter above follows current daylight saving.
Convert CEST to HST Time Zone
A quick guide to CEST → HST: the time gap, the live clocks, scheduling tips, and how we keep it accurate.
How does the CEST to HST converter work?
It takes three quick steps:
- Click the CEST field on the left and pick the time you want to convert.
- The matching HST time updates on the right automatically — there’s no button to press.
- Need a different day? Click the date field and the result follows, rolling over if it crosses midnight.
What is the time difference between CEST and HST?
HST is 12 hours behind CEST. In everyday terms, once you know the time on one side you just subtract 12 hours to get the other — so a call between Paris and Honolulu is always 12 hours apart.
What's the current time in HST?
Right now the time in Hawaii Standard Time (HST) is Monday, June 29, 2026 · 7:53:58 AM. It ticks every second, so you’re always looking at the live HST clock.
And what time is it in CEST?
And in Central European Summer Time (CEST), it’s currently Monday, June 29, 2026 · 7:53:58 PM. Compare the two and the 12 hours gap is easy to see.
Planning a meeting across CEST and HST?
For example, a 9:00 AM CEST meeting takes place at 9:00 PM HST (−1 day). The trick is to aim for a slot that lands inside normal working hours on both sides. Once you’ve found a time, hit Share on the converter to copy a link with the time built in — easy to send to a colleague. Juggling three or more zones? The meeting planner highlights the hours that overlap for everyone.
Does daylight saving time change the CEST–HST difference?
The labels CEST and HST are fixed offsets, so the result on this page is always exact. One side switches between standard and summer time while the other stays put, so the real-world gap can shift by an hour for part of the year. It's worth checking which label a region is actually using before you lock in a time.
How accurate is this CEST to HST conversion?
We don’t guess. CEST and HST times are worked out from the official IANA time zone database, the trusted standard that operating systems use worldwide. Because daylight-saving rules and regional offsets do change over time, we track those updates rather than relying on a fixed number — which is exactly where many converters slip up.
Convert CEST to other time zones
- UTC Coordinated Universal Time
- GMT Greenwich Mean Time
- EST Eastern Standard Time
- EDT Eastern Daylight Time
- CST Central Standard Time
- CDT Central Daylight Time
- MST Mountain Standard Time
- MDT Mountain Daylight Time
- PST Pacific Standard Time
- PDT Pacific Daylight Time
- AKST Alaska Standard Time
- AKDT Alaska Daylight Time
- HST Hawaii Standard Time
- AST Atlantic Standard Time
- ADT Atlantic Daylight Time
- NST Newfoundland Standard Time
- NDT Newfoundland Daylight Time
- BRT Brasília Time
- ART Argentina Time
- WET Western European Time
- WEST Western European Summer Time
- CET Central European Time
- EET Eastern European Time
- EEST Eastern European Summer Time
- BST British Summer Time
- IST Irish Standard Time
- MSK Moscow Standard Time
- TRT Turkey Time
- WAT West Africa Time
- CAT Central Africa Time
- EAT East Africa Time
- SAST South Africa Standard Time
- GST Gulf Standard Time
- IST Israel Standard Time
- IDT Israel Daylight Time
- IST India Standard Time
- PKT Pakistan Standard Time
- BDT Bangladesh Standard Time
- ICT Indochina Time
- WIB Western Indonesian Time
- WITA Central Indonesian Time
- WIT Eastern Indonesian Time
- CST China Standard Time
- HKT Hong Kong Time
- SGT Singapore Time
- PHT Philippine Time
- JST Japan Standard Time
- KST Korea Standard Time
- AWST Australian Western Standard Time
- ACST Australian Central Standard Time
- ACDT Australian Central Daylight Time
- AEST Australian Eastern Standard Time
- AEDT Australian Eastern Daylight Time
- NZST New Zealand Standard Time
- NZDT New Zealand Daylight Time
Convert to HST from other time zones
- UTC Coordinated Universal Time
- GMT Greenwich Mean Time
- EST Eastern Standard Time
- EDT Eastern Daylight Time
- CST Central Standard Time
- CDT Central Daylight Time
- MST Mountain Standard Time
- MDT Mountain Daylight Time
- PST Pacific Standard Time
- PDT Pacific Daylight Time
- AKST Alaska Standard Time
- AKDT Alaska Daylight Time
- AST Atlantic Standard Time
- ADT Atlantic Daylight Time
- NST Newfoundland Standard Time
- NDT Newfoundland Daylight Time
- BRT Brasília Time
- ART Argentina Time
- WET Western European Time
- WEST Western European Summer Time
- CET Central European Time
- CEST Central European Summer Time
- EET Eastern European Time
- EEST Eastern European Summer Time
- BST British Summer Time
- IST Irish Standard Time
- MSK Moscow Standard Time
- TRT Turkey Time
- WAT West Africa Time
- CAT Central Africa Time
- EAT East Africa Time
- SAST South Africa Standard Time
- GST Gulf Standard Time
- IST Israel Standard Time
- IDT Israel Daylight Time
- IST India Standard Time
- PKT Pakistan Standard Time
- BDT Bangladesh Standard Time
- ICT Indochina Time
- WIB Western Indonesian Time
- WITA Central Indonesian Time
- WIT Eastern Indonesian Time
- CST China Standard Time
- HKT Hong Kong Time
- SGT Singapore Time
- PHT Philippine Time
- JST Japan Standard Time
- KST Korea Standard Time
- AWST Australian Western Standard Time
- ACST Australian Central Standard Time
- ACDT Australian Central Daylight Time
- AEST Australian Eastern Standard Time
- AEDT Australian Eastern Daylight Time
- NZST New Zealand Standard Time
- NZDT New Zealand Daylight Time
Frequently asked questions
How many hours behind CEST is HST?
HST is 12 hours behind CEST — a fixed 12 hours difference, since both are fixed-offset labels.
What time is it in HST when it's 12:00 PM CEST?
When it's 12:00 PM (noon) CEST, it's 12:00 AM HST.
Do CEST or HST use daylight saving time?
Central European Summer Time (CEST) observes daylight saving, alternating with CET; Hawaii Standard Time (HST) is a fixed offset with no daylight saving.
Why might the real-world CEST–HST difference change during the year?
The labels CEST and HST are fixed offsets, so this converter is always exact. But Central European Summer Time's region switches between standard and summer time, so for part of the year you may actually want CET to HST. Always check which label a region is currently using before you schedule.