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Zone to zone

EST to HST — Hawaii Time is 5 hours behind

Hawaii Time (HST) is 5 hours behind of Eastern Time (EST) while both are on standard time. Once daylight saving starts the gap becomes 6 hours behind, so any recurring meeting between these two regions moves by an hour twice a year.

Standard time

5 hours behind

Applies while neither zone is on daylight saving — broadly November to March in the northern hemisphere.

Daylight saving

6 hours behind

Applies while the clocks are forward. This pair does not keep a constant gap, so check the date.

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Your device reports your local zone. Everything is calculated in your browser.

How the two zones line up

Eastern Time sits at UTC−5 in winter and UTC−4 in summer. Hawaii Time sits at UTC−10 all year. The difference between those two offsets is the number you add or subtract.

Daylight saving

There are a few hours of shared working time. Booking towards the start of the later zone's day usually suits everybody.

Where this conversion gets used

  • Coast-to-coast conference calls
  • all-hands scheduling
  • market open times
  • customer support shifts
  • flight connections

EST to HST — every hour

Both columns are computed from the IANA database, so they follow the real transition dates.

ESTHST — standardHST — daylight saving
12:00 am7:00 pm (previous day)6:00 pm (previous day)
1:00 am8:00 pm (previous day)7:00 pm (previous day)
2:00 am9:00 pm (previous day)8:00 pm (previous day)
3:00 am10:00 pm (previous day)9:00 pm (previous day)
4:00 am11:00 pm (previous day)10:00 pm (previous day)
5:00 am12:00 am11:00 pm (previous day)
6:00 am1:00 am12:00 am
7:00 am2:00 am1:00 am
8:00 am3:00 am2:00 am
9:00 am4:00 am3:00 am
10:00 am5:00 am4:00 am
11:00 am6:00 am5:00 am
12:00 pm7:00 am6:00 am
1:00 pm8:00 am7:00 am
2:00 pm9:00 am8:00 am
3:00 pm10:00 am9:00 am
4:00 pm11:00 am10:00 am
5:00 pm12:00 pm11:00 am
6:00 pm1:00 pm12:00 pm
7:00 pm2:00 pm1:00 pm
8:00 pm3:00 pm2:00 pm
9:00 pm4:00 pm3:00 pm
10:00 pm5:00 pm4:00 pm
11:00 pm6:00 pm5:00 pm

Questions people ask

5 hours behind during standard time, and 6 hours behind while daylight saving is running.

Related conversions

EST to AKSTMST to PSTPST to AKSTPST to HST

All conversions →

Booking something recurring?

A fixed clock time drifts when either side changes its clocks. Our guides explain how to stop that happening.

Read the DST guidePlan a meeting