timeinusa.net

PST to HST — Pacific to Hawaii Time

Hawaii is 2 hours behind Pacific in winter and 3 hours behind in summer.

The conversion rule

While the mainland is on standard time, subtract 2 hours from Pacific Time for Hawaii: 12:00 PM PST is 10:00 AM HST. Hawaii holds UTC−10 all year, so after the March switch to PDT the gap grows to 3 hours — noon PDT is 9:00 AM HST.

Winter overlap is generous for a Hawaii pairing: 11:00 AM–5:00 PM PT / 9:00 AM–3:00 PM HST. In summer it tightens to 12:00–5:00 PM PT / 9:00 AM–2:00 PM HST.

PST to HST conversion chart

Pacific (PST)Hawaii (HST)
12:00 AM (midnight)10:00 PM (prev. day)
1:00 AM11:00 PM (prev. day)
2:00 AM12:00 AM (midnight)
3:00 AM1:00 AM
4:00 AM2:00 AM
5:00 AM3:00 AM
6:00 AM4:00 AM
7:00 AM5:00 AM
8:00 AM6:00 AM
9:00 AM7:00 AM
10:00 AM8:00 AM
11:00 AM9:00 AM
12:00 PM (noon)10:00 AM
1:00 PM11:00 AM
2:00 PM12:00 PM (noon)
3:00 PM1:00 PM
4:00 PM2:00 PM
5:00 PM3:00 PM
6:00 PM4:00 PM
7:00 PM5:00 PM
8:00 PM6:00 PM
9:00 PM7:00 PM
10:00 PM8:00 PM
11:00 PM9:00 PM

This chart is built on the winter gap of 2 hours (first Sunday of November through the second Sunday of March). While California is on PDT — Mar 8 to Nov 1 in 2026 — subtract 3 hours instead.

Reverse direction: HST to PST (add 2 hours in winter, 3 in summer). Related: PST to EST, PST to CST, PST to MST.

Frequently asked questions

Why is Honolulu 2 hours behind LA in winter but 3 in summer?

Hawaii remains on HST (UTC−10) every month, while California alternates between PST (UTC−8) and PDT (UTC−7). Standard time puts them 2 hours apart; daylight saving stretches it to 3.

What is 9:00 PM PST in Hawaii?

7:00 PM HST in winter; 9:00 PM PDT in summer is 6:00 PM HST.

What time should California call Hawaii?

Pacific afternoons. 1:00 PM PT reaches Honolulu at 11:00 AM in winter and 10:00 AM in summer, mid-morning either way.