timeinusa.net

CST to HST — Central to Hawaii Time

Hawaii is 4 hours behind Central in winter and 5 hours behind in summer.

The conversion rule

From early November to early March, subtract 4 hours from Central Time to get Hawaii Time: 12:00 PM CST is 8:00 AM HST. Because Hawaii never observes daylight saving, the gap stretches to 5 hours once Central moves to CDT — noon CDT is 7:00 AM HST.

In winter the workable window is 1:00–5:00 PM CT / 9:00 AM–1:00 PM HST; in summer it narrows to 2:00–5:00 PM CT / 9:00 AM–12:00 PM HST. Favor the late Central afternoon for Honolulu calls.

CST to HST conversion chart

Central (CST)Hawaii (HST)
12:00 AM (midnight)8:00 PM (prev. day)
1:00 AM9:00 PM (prev. day)
2:00 AM10:00 PM (prev. day)
3:00 AM11:00 PM (prev. day)
4:00 AM12:00 AM (midnight)
5:00 AM1:00 AM
6:00 AM2:00 AM
7:00 AM3:00 AM
8:00 AM4:00 AM
9:00 AM5:00 AM
10:00 AM6:00 AM
11:00 AM7:00 AM
12:00 PM (noon)8:00 AM
1:00 PM9:00 AM
2:00 PM10:00 AM
3:00 PM11:00 AM
4:00 PM12:00 PM (noon)
5:00 PM1:00 PM
6:00 PM2:00 PM
7:00 PM3:00 PM
8:00 PM4:00 PM
9:00 PM5:00 PM
10:00 PM6:00 PM
11:00 PM7:00 PM

The 24 rows above show the winter (standard time) conversion of 4 hours. Between the second Sunday of March and the first Sunday of November (Mar 8 – Nov 1 in 2026), subtract 5 hours.

Reverse direction: HST to CST (add 4 hours in winter, 5 in summer). Related: CST to EST, CST to MST, CST to PST.

Frequently asked questions

Why does the CST–HST gap change during the year?

Hawaii keeps HST (UTC−10) permanently, while Central Time swings between CST (UTC−6) and CDT (UTC−5). That makes Honolulu 4 hours behind Chicago in winter and 5 hours behind from March to November.

What is 5:00 PM CST in Hawaii?

1:00 PM HST in winter; in summer 5:00 PM CDT is 12:00 PM HST.

What time is a Hawaii 9:00 AM meeting in Central Time?

1:00 PM CST in winter and 2:00 PM CDT in summer.