HST → CST Converter
Hawaii to Central US — late Hawaii afternoon meets early CST morning. Tourism operators and military coordination.
HST → CST
8:40 AM
Hawaii-Aleutian Standard Time (HST)
Thursday, June 11, 2026
UTC-10 (DST active)
1:40 PM
Central Daylight Time (CDT)
Thursday, June 11, 2026
UTC-5 (DST active)
Time Zone Converter
HST·Honolulu
8:40 AM
Thursday, June 11, 2026
CST·Chicago
1:40 PM
Thursday, June 11, 2026
Compare Times
| HST | CST |
|---|
Morning
| HST | CST |
|---|---|
| 12:00 AM HST | 4:00 AM CST |
| 1:00 AM HST | 5:00 AM CST |
| 2:00 AM HST | 6:00 AM CST |
| 3:00 AM HST | 7:00 AM CST |
| 4:00 AM HST | 8:00 AM CST |
| 5:00 AM HST | 9:00 AM CST |
| 6:00 AM HST | 10:00 AM CST |
| 7:00 AM HST | 11:00 AM CST |
| 8:00 AM HST | 12:00 PM CST |
| 9:00 AM HST | 1:00 PM CST |
| 10:00 AM HST | 2:00 PM CST |
| 11:00 AM HST | 3:00 PM CST |
Afternoon
| HST | CST |
|---|---|
| 12:00 PM HST | 4:00 PM CST |
| 1:00 PM HST | 5:00 PM CST |
| 2:00 PM HST | 6:00 PM CST |
| 3:00 PM HST | 7:00 PM CST |
| 4:00 PM HST | 8:00 PM CST |
Evening
| HST | CST |
|---|---|
| 5:00 PM HST | 9:00 PM CST |
| 6:00 PM HST | 10:00 PM CST |
| 7:00 PM HST | 11:00 PM CST |
| 8:00 PM HST | 12:00 AM CST |
| 9:00 PM HST | 1:00 AM CST |
| 10:00 PM HST | 2:00 AM CST |
| 11:00 PM HST | 3:00 AM CST |
Frequently Asked Questions: HST to CST
What is the time difference between Hawaii Time and Central Time?
CST is 4 hours ahead of HST (standard time).
What time is midnight in HST in CST?
Midnight (12:00 AM) in Hawaii Time translates to 4:00 AM CST in Central Time.
When do business hours overlap between HST and CST?
The business hours overlap window is 09:00–13:00 HST (13:00–17:00 CST). There is a strong overlap with plenty of shared working hours.
Common Time Conversions
EST · New York →
CST · Chicago →
MST · Denver →
PST · Los Angeles →
AKST · Anchorage →
HST · Honolulu →
UTC · Universal →
GMT · London →
IST · New Delhi →
CET · Paris →
How Time Zone Conversion Works
Time zone conversion works by comparing the UTC offset of one location to another. Every city or region is measured relative to Coordinated Universal Time (UTC), which acts as the global reference point for civil time.
CST is 4 hours ahead of HST (standard time).
Daylight Saving Time: CST observes DST; HST does not. The offset between them shifts by 1 hour twice a year — in spring and autumn — when CST changes its clocks.
Best time to call Chicago from Honolulu
Planning a remote meeting or international call? The optimal business hours overlap between Honolulu and Chicago is strong, with significant shared business hours available.
Try Meeting Planner for multi-city group scheduling →HST
09:00–13:00
Hawaii Time
CST
13:00–17:00
Central Time
Recommended time: 11:00 HST / 15:00 CST
DST schedule for 2026
Current-year daylight saving start and end dates for the selected zones.
HST · Hawaii Time
Standard offset −10:00
Hawaii Time remains on a constant standard offset for the year.
Hawaii does not observe DST. The Aleutian Islands portion of HAST does observe DST (becoming HADT, UTC−9), but population there is negligible. For practical purposes HST is a fixed-offset zone.
CST · Central Time
Standard offset −06:00
- Starts
- Mar 8, 2026 · 02:00 → 03:00
- second_sunday_of_march
- Ends
- Nov 1, 2026 · 02:00 → 01:00
- first_sunday_of_november
- Daylight time
- CDT · −05:00
Most of Mexico no longer observes DST as of 2022; only a few border-state municipalities still do.
Principal Cities
HST — Hawaii Time
- HonoluluUnited States
- Pearl CityUnited States
- HiloUnited States
- KailuaUnited States
CST — Central Time
- Mexico CityMexico
- ChicagoUnited States
- HoustonUnited States
- GuadalajaraMexico