CST to HST Converter
HST is 4 hours behind CST. 9:00 AM CST = 5:00 AM HST.
HST is 4 hours behind CST at the moment. To convert CST to HST, subtract 4 hours from the CST time: 9:00 AM CST = 5:00 AM HST.
CST (Central Time) is used in Chicago, Dallas, Houston, Minneapolis, New Orleans, Winnipeg; Mexico City and Central America use UTC−6 all year. HST (Hawaii-Aleutian Time) is used in Hawaii (all year, no daylight saving time).
CST here means North American Central Standard Time, not China Standard Time.
CST to HST time conversion table
CST to HST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| CST | HST | Day |
|---|---|---|
| 12:00 AM CST | 8:00 PM HST | previous day |
| 1:00 AM CST | 9:00 PM HST | previous day |
| 2:00 AM CST | 10:00 PM HST | previous day |
| 3:00 AM CST | 11:00 PM HST | previous day |
| 4:00 AM CST | 12:00 AM HST | night |
| 5:00 AM CST | 1:00 AM HST | night |
| 6:00 AM CST | 2:00 AM HST | night |
| 7:00 AM CST | 3:00 AM HST | night |
| 8:00 AM CST | 4:00 AM HST | night |
| 9:00 AM CST | 5:00 AM HST | night |
| 10:00 AM CST | 6:00 AM HST | — |
| 11:00 AM CST | 7:00 AM HST | — |
| 12:00 PM CST | 8:00 AM HST | — |
| 1:00 PM CST | 9:00 AM HST | work hours |
| 2:00 PM CST | 10:00 AM HST | work hours |
| 3:00 PM CST | 11:00 AM HST | work hours |
| 4:00 PM CST | 12:00 PM HST | work hours |
| 5:00 PM CST | 1:00 PM HST | — |
| 6:00 PM CST | 2:00 PM HST | — |
| 7:00 PM CST | 3:00 PM HST | — |
| 8:00 PM CST | 4:00 PM HST | — |
| 9:00 PM CST | 5:00 PM HST | — |
| 10:00 PM CST | 6:00 PM HST | — |
| 11:00 PM CST | 7:00 PM HST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert CST to HST
Subtract 4 hours from the CST time to get HST.
Example: 9:00 AM CST = 5:00 AM HST.
Across midnight: 1:00 AM CST = 9:00 PM HST (previous day). The date changes, so always check the day as well as the hour.
Time difference between CST and HST
The time difference between CST and HST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: HST is 4 hours behind of CST.
- 8 Mar 2026 – 31 Oct 2026: HST is 5 hours behind of CST.
- 1 Nov 2026 – 30 Dec 2026: HST is 4 hours behind of CST.
CST and HST during daylight saving time
- CST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
- HST does not observe daylight saving time; it stays on UTC−10 all year.
Best time for a meeting between CST and HST
CST and HST share 4 hours of the 9 AM–5 PM working day. Any time between 1:00 PM and 5:00 PM CST lands between 9:00 AM and 1:00 PM HST, inside working hours for both.
CST to HST FAQ
What is the time difference between CST and HST?
Right now HST is 4 hours behind CST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM CST in HST?
9:00 AM CST is 5:00 AM HST.
What is 12 PM (noon) CST in HST?
12:00 PM CST is 8:00 AM HST.
Is HST ahead of or behind CST?
HST is 4 hours behind CST, so it is earlier in HST than in CST.
Does CST change for daylight saving time?
Yes. CST next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
Does HST change for daylight saving time?
No. HST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between CST and HST?
CST and HST share 4 hours of the 9 AM–5 PM working day. Any time between 1:00 PM and 5:00 PM CST lands between 9:00 AM and 1:00 PM HST, inside working hours for both.
Is CT the same as CST?
CST is the winter (standard) name of Central Time (CT). From March to November the same clocks are called CDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert HST to CST
Convert CST to other time zones
Convert other time zones to HST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.