HDT to JST Converter

Convert Hawaii-Aleutian Daylight Time (HDT) to Japan Standard Time (JST) instantly

PST - Pacific Standard Time

+18 hrs

Wed, Jul 15, 2026

EST - Eastern Standard Time

--:-- --

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Instant Conversion

Real-time results as you type

50+ Timezones

All major world timezones covered

Date Handling

Handles day rollover automatically

HDT to JST Conversion Table

The table below shows hourly time conversions from Hawaii-Aleutian Daylight Time (HDT) to Japan Standard Time (JST). JST is +18 hours from HDT. Business hours (9 AM - 5 PM) are highlighted in blue for easy scheduling across these time zones.

HDT	JST	Note

About HDT & JST

Hawaii-Aleutian Daylight Time (HDT)

UTC Offset: UTC-9

Regions: Aleutian Islands (Mar-Nov)

Japan Standard Time (JST)

UTC Offset: UTC+9

Regions: Tokyo, Osaka, Kyoto

What time is it now in HDT?

The current time in HDT is

What time is it now in JST?

The current time in JST is

The Hawaii-Aleutian Daylight Time (HDT) is -18 hours behind Japan Standard Time (JST).

When to Use Timezone Conversion

Remote Meetings

Schedule calls with international teams across different time zones.

Travel Planning

Know the local time at your destination before you arrive.

Stock Markets

Track market opening and closing times across global exchanges.

Live Events

Never miss a live stream, sports event, or product launch.

Software Development

Coordinate deployments and standups with distributed teams.

International Calls

Call friends and family at appropriate hours across the world.

Frequently Asked Questions

What is the time difference between HDT and JST?

JST is +18 hours from HDT. Hawaii-Aleutian Daylight Time is UTC-9 and Japan Standard Time is UTC+9.

What regions use HDT?

Hawaii-Aleutian Daylight Time (HDT) is used in: Aleutian Islands (Mar-Nov).

What regions use JST?

Japan Standard Time (JST) is used in: Tokyo, Osaka, Kyoto.

Is this timezone converter free?

Yes, our timezone converter is completely free with no registration required. Convert unlimited times between any supported timezones.

Does it handle daylight saving time?

Our converter uses fixed UTC offsets. For daylight saving adjustments, select the appropriate DST variant (e.g., EDT instead of EST during summer months in the US).

Convert HDT to Other Time Zones

HDT to PST HDT to PDT HDT to MST HDT to MDT HDT to CST HDT to CDT HDT to EST HDT to EDT HDT to AST HDT to ADT HDT to NST HDT to NDT HDT to BRT HDT to HST HDT to AKST HDT to AKDT HDT to SST HDT to CHST HDT to GMT HDT to UTC HDT to BST HDT to WET HDT to WEST HDT to CET HDT to CEST HDT to MET HDT to MEST HDT to EET HDT to EEST HDT to MSK HDT to IST HDT to CAT HDT to WAT HDT to EAT HDT to SAST HDT to IST HDT to IST HDT to IDT HDT to PKT HDT to BDT HDT to ICT HDT to WIB HDT to WITA HDT to WIT HDT to SGT HDT to HKT HDT to CST HDT to CST HDT to PST HDT to KST HDT to AWST HDT to ACST HDT to ACDT HDT to AEST HDT to AEDT HDT to NZST HDT to NZDT

Convert JST to Other Time Zones

JST to PST JST to PDT JST to MST JST to MDT JST to CST JST to CDT JST to EST JST to EDT JST to AST JST to ADT JST to NST JST to NDT JST to BRT JST to HST JST to AKST JST to AKDT JST to SST JST to CHST JST to GMT JST to UTC JST to BST JST to WET JST to WEST JST to CET JST to CEST JST to MET JST to MEST JST to EET JST to EEST JST to MSK JST to IST JST to CAT JST to WAT JST to EAT JST to SAST JST to IST JST to IST JST to IDT JST to PKT JST to BDT JST to ICT JST to WIB JST to WITA JST to WIT JST to SGT JST to HKT JST to CST JST to CST JST to PST JST to KST JST to AWST JST to ACST JST to ACDT JST to AEST JST to AEDT JST to NZST JST to NZDT