Clockjumper

Timezone conversion

CST to HST Time — Convert Central Standard Time (US) to Hawaii Standard Time

HST is currently 5 hours behind CST. The gap shifts across the year: around January it is 4 hours behind CST, and around July it is 5 hours behind CST, because one or both zones observe daylight saving.

HST is currently 5 hours behind CST.

CST • CDT (UTC-5)
12:16 PM
Wednesday, Jul 8
HST • HST (UTC-10)
7:16 AM
Wednesday, Jul 8

Abbreviation disambiguation

CST here means Central Standard Time (US). Note: collides: China Standard Time, Cuba Standard Time

HST here means Hawaii Standard Time. Note: no DST

Interactive converter

12:00PM

12
:
00

Full CST to HST conversion table

CSTHST
12:00 AM7:00 PM(previous day)
1:00 AM8:00 PM(previous day)
2:00 AM9:00 PM(previous day)
3:00 AM10:00 PM(previous day)
4:00 AM11:00 PM(previous day)
5:00 AM12:00 AM
6:00 AM1:00 AM
7:00 AM2:00 AM
8:00 AM3:00 AM
9:00 AM4:00 AM
10:00 AM5:00 AM
11:00 AM6:00 AM
12:00 PM7:00 AM
1:00 PM8:00 AM
2:00 PM9:00 AM
3:00 PM10:00 AM
4:00 PM11:00 AM
5:00 PM12:00 PM
6:00 PM1:00 PM
7:00 PM2:00 PM
8:00 PM3:00 PM
9:00 PM4:00 PM
10:00 PM5:00 PM
11:00 PM6:00 PM

Daylight saving and how the gap changes

Around January the CST → HST offset is 4 hours behind CST. Around July it is 5 hours behind CST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Frequently asked questions

Is HST ahead of or behind CST right now?
HST is currently 5 hours behind CST.
What is the current CST to HST time difference?
Right now the gap is 5 hours behind — HST is 5 hours behind CST.
Does the CST → HST offset change during the year?
Yes. Around January the offset is 4 hours behind CST; around July it is 5 hours behind CST. The converter above always reflects the correct offset for the date you pick.
Does CST observe daylight saving time?
Yes — Central Standard Time (US) observes DST, so its UTC offset shifts by 1 hour(s) between winter and summer.
Does HST observe daylight saving time?
No — Hawaii Standard Time stays at a fixed UTC offset year-round.
What time is 9 AM CST in HST?
9:00 AM CST is 4:00 AM HST.
What time is 12 PM (noon) CST in HST?
12:00 PM CST is 7:00 AM HST.
What time is 5 PM CST in HST?
5:00 PM CST is 12:00 PM HST.
When is the best time to schedule a call between CST and HST?
The working-hours overlap (09:00–17:00 in both zones) runs roughly 2:00 PM – 5:00 PM CST (≈ 3 hours). Mid-morning CST is usually the safest window for a live call.
What time zone does CST refer to?
CST refers to Central Standard Time (US) (IANA: America/Chicago).
What time zone does HST refer to?
HST refers to Hawaii Standard Time (IANA: Pacific/Honolulu).
Is CST on this page the same as other zones that share the letters "CST"?
On Clockjumper, CST means Central Standard Time (US). Disambiguation: collides: China Standard Time, Cuba Standard Time
Is HST on this page the same as other zones that share the letters "HST"?
On Clockjumper, HST means Hawaii Standard Time. Disambiguation: no DST

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