HST to EST Converter

Category: Time Zone Converters

- June 30, 2025

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Hawaii Standard Time (HST)

UTC-10 • Honolulu, Pearl City, Hilo

Conversion Settings

Configure your timezone conversion preferences

Auto Convert

Daylight Saving Aware

Show UTC Offset

Show Seconds

Eastern Standard Time (EST/EDT)

UTC-5/-4 • New York, Toronto, Miami

--:--:--

Select a time to convert

Time Difference: --

UTC Offset (HST): -10

UTC Offset (EST): -5

DST Status: --

HST Time: --

EST Time: --

Time Format:

Current HST: --:--:--

Current EST: --:--:--

🏝️ HST never observes daylight saving time and is always UTC-10. EST switches to EDT (UTC-4) from March to November.

HST to EST Conversion Guide

What is HST to EST Conversion?

HST to EST conversion helps you translate time between Hawaii Standard Time and Eastern Standard Time zones. HST is always UTC-10 and never changes for daylight saving time. EST is UTC-5 during standard time and switches to EDT (UTC-4) during daylight saving time. The time difference varies between 5-6 hours depending on the season.

Time Zone Information

Hawaii Standard Time (HST): Used throughout Hawaii including Honolulu, Pearl City, and Hilo. Always UTC-10 with no daylight saving time adjustments.

Eastern Standard Time (EST): Used in eastern United States and parts of Canada. UTC-5 in winter, switches to EDT (UTC-4) in summer.

Time Difference: EST is 5 hours ahead during winter (EST) and 6 hours ahead during summer (EDT).

Daylight Saving Time Impact

Hawaii: Never observes daylight saving time - HST remains UTC-10 throughout the year

Eastern Time Zone: Observes daylight saving from second Sunday in March to first Sunday in November

Variable Difference: Time difference changes between 5 and 6 hours depending on DST status

Common Conversion Examples

Winter Business Hours

HST 9:00 AM → EST 2:00 PM

HST 5:00 PM → EST 10:00 PM

5-hour difference during EST

Summer Business Hours

HST 9:00 AM → EDT 3:00 PM

HST 5:00 PM → EDT 11:00 PM

6-hour difference during EDT

Meeting Planning (Winter)

Best HST Time: 8:00 AM - 1:00 PM

Converts to EST: 1:00 PM - 6:00 PM

Good business hours overlap

Meeting Planning (Summer)

Best HST Time: 7:00 AM - 12:00 PM

Converts to EDT: 1:00 PM - 6:00 PM

Earlier start needed in summer

Conversion Tips & Best Practices

• Remember that EST switches to EDT, making the time difference 1 hour greater in summer

• Hawaii is significantly behind the mainland US - when it's afternoon in Hawaii, it's evening on the East Coast

• Best meeting times are typically morning to early afternoon HST

• Double-check whether Eastern time is observing EST or EDT for accurate conversion

• Hawaii is the only US state entirely in the HST timezone

• Eastern time zone covers major cities like New York, Toronto, Miami, and Atlanta

HST to EST Time Converter

If you're trying to coordinate a call between Honolulu and New York or double-check what time your friend lands in Miami when leaving from Hilo, this HST to EST time converter makes it simple. It's built for quick use but packed with smart features to handle everything from daylight saving changes to custom formatting. No fluff, no confusion. Just clear answers to your time zone questions.

Choose Your Starting Point

At the top of the converter, you set the base time and date. By default, the input is Hawaii Standard Time (HST), used across places like Honolulu, Pearl City, and Hilo. If you’re starting from Eastern Time instead, a simple dropdown lets you switch to EST/EDT. The tool automatically updates the titles and time zone labels based on your choice.

Pick a Time and Let It Do the Math

Once you’ve set a date and time, the tool either converts it instantly (if “Auto Convert” is on) or waits for you to hit the "Convert Time" button. You’ll see the translated time in the output section, showing exactly how it lines up in the target zone. If you started with HST, the result shows in Eastern Time. If you started with Eastern Time, it flips to HST.

Options That Work Around Real Life

Smart Settings That Adjust as the Year Changes

Eastern Time has that tricky daylight saving switch. Hawaii doesn't. This converter has a “Daylight Saving Aware” checkbox that’s on by default. It keeps track of the second Sunday in March and the first Sunday in November so you don’t have to. The time difference automatically adjusts between 5 or 6 hours depending on the season.

Customize What You See

Show Seconds: Toggle this to see the exact second in your converted time.
Show UTC Offset: Want to see -10 or -5 as part of the result? Turn this on to show the offset value in hours or full format like -05:00.
Time Format: Click “12 Hour” to switch to 24-hour view, or back again depending on your style.

Helpful Buttons for Quick Actions

Below the settings, four buttons help you manage your time conversion even faster:

Convert Time: Converts based on your date and time input.
Swap: Instantly flips the input and output zones, so you can go from “What’s 9 AM in Hilo in New York?” to “What’s 3 PM in New York in Honolulu?”
Now: Fills in the current local time based on your selected time zone.
Reset: Clears everything and sets you back to the current time in HST.

See Live Time Updates for Both Zones

At the bottom, you’ll find a real-time display showing current time in both HST and EST. It updates every second, so even if you’re not converting anything, you can use it like a mini dual clock.

Real-World Example: From Maui to Manhattan

Say you’re in Maui and planning a video call with a client in Manhattan. You want the meeting at 10 AM your time. Plug in 10:00 AM, leave HST selected, and the tool tells you that’s 4 PM in New York during daylight time. But if you’re planning for February instead, it updates that to 3 PM automatically. This tool keeps both of you on track without anyone waking up too early or calling during dinner.

A Few Things People Usually Ask

What happens if I change the date but not the time? The tool adjusts for daylight saving based on the date, so your time difference may shift by an hour without you noticing. That’s expected.
Can I convert from EST to HST? Yes. Use the dropdown to choose Eastern Time as the input. The tool flips the labels and output accordingly.
Does this cover Toronto too? Absolutely. Toronto follows the same Eastern Time rules as New York and Miami.
Can I convert times even if I don’t know if it’s EST or EDT? The “Daylight Saving Aware” setting handles that for you. Just plug in the date and it figures it out.

Keep Your Calls Lined Up From the Islands to the East Coast

This converter is built for people who need to coordinate across two very different time zones, whether you're sending an email from Honolulu to someone in Atlanta, or catching a Zoom call from Oahu with someone in Toronto. It handles the tricky stuff behind the scenes, so you can focus on being where you need to be, right on time.