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CST to HST converter

HST is 4 hours behind of CST today. CST (Central Standard Time) - currently UTC−6; HST (Hawaii Standard Time) - currently UTC−10.

5 hours of the workday overlap: 1 PM-6 PM CST is 9 AM-2 PM HST. Quick answers: 9 AM CST = 5 AM HST, 12 PM CST = 8 AM HST, 5 PM CST = 1 PM HST.

CST · Central Standard Time

UTC−6

HST · Hawaii Standard Time

UTC−10

Convert a time

HST
--:--

Working hours side by side

columns: CST hours
PING · 09–18 local MAYBE · 07–09, 18–21 NOT NOW · 21–07Outlined: everyone can be pinged

CST to HST conversion table

CSTHSTVerdict in HST
12 AM · 00:008 PM · 20:00 (previous day)MAYBE
1 AM · 01:009 PM · 21:00 (previous day)NOT NOW
2 AM · 02:0010 PM · 22:00 (previous day)NOT NOW
3 AM · 03:0011 PM · 23:00 (previous day)NOT NOW
4 AM · 04:0012 AM · 00:00NOT NOW
5 AM · 05:001 AM · 01:00NOT NOW
6 AM · 06:002 AM · 02:00NOT NOW
7 AM · 07:003 AM · 03:00NOT NOW
8 AM · 08:004 AM · 04:00NOT NOW
9 AM · 09:005 AM · 05:00NOT NOW
10 AM · 10:006 AM · 06:00NOT NOW
11 AM · 11:007 AM · 07:00MAYBE
12 PM · 12:008 AM · 08:00MAYBE
1 PM · 13:009 AM · 09:00PING
2 PM · 14:0010 AM · 10:00PING
3 PM · 15:0011 AM · 11:00PING
4 PM · 16:0012 PM · 12:00PING
5 PM · 17:001 PM · 13:00PING
6 PM · 18:002 PM · 14:00PING
7 PM · 19:003 PM · 15:00PING
8 PM · 20:004 PM · 16:00PING
9 PM · 21:005 PM · 17:00PING
10 PM · 22:006 PM · 18:00MAYBE
11 PM · 23:007 PM · 19:00MAYBE

Cities on CST

America/Chicago
ChicagoHoustonSan AntonioDallasFort WorthAustin

Cities on HST

Pacific/Honolulu
HonoluluEast HonoluluPearl CityWaiau-Pacific PalisadesMakakilo / Kapolei / Honokai HaleKalihi-Palama

Other conversions

All converters
HST → CSTCST → ESTCST → EDTCST → PSTCST → PDTCST → MSTCST → GMTCST → UTCCST → BSTCST → CETCST → IST

Questions

What is the time difference between CST and HST?

HST (Hawaii Standard Time) is 4 hours behind of CST (Central Standard Time) right now: UTC−6 versus UTC−10.

What is 9 AM CST in HST?

9:00 AM CST is 5 AM HST.

What is 5 PM CST in HST?

5:00 PM CST is 1 PM HST.

Does daylight saving change the CST–HST difference?

Chicago switches between CST and CDT; next change Sunday, 14 March 2027 (UTC−6 → UTC−5). HST has no daylight saving; it stays UTC−10 all year.