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Convert JST to HDT Time

Convert Japan Standard Time (JST) to Hawaii-Aleutian Daylight Time (HDT, UTC-9) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for JST to HDT coordination. Includes 24-hour conversion table and live time displays. Perfect for international scheduling and global team collaboration. Works on all devices with accurate, reliable results.

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JST
Japan Standard Time
Current Time
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🇺🇸
HDT
Hawaii-Aleutian Daylight Time
Current Time
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Converted Time
Select a time to convert
Time Difference
-
Your Local Time
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UTC Time
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JST to HDT Time Conversion

Hawaii-Aleutian Daylight Time is 18 hours behind Japan Standard Time

Always accurate • Live conversion
-18h
difference

JST to HDT Time Conversion Chart

Popular Time Conversions

Complete 24-Hour Conversion

Japan Standard Time to Hawaii-Aleutian Daylight Time full day schedule

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12:00 AM
JST
6:00 AM
HDT
(previous day)
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1:00 AM
JST
7:00 AM
HDT
(previous day)
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2:00 AM
JST
8:00 AM
HDT
(previous day)
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3:00 AM
JST
9:00 AM
HDT
(previous day)
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4:00 AM
JST
10:00 AM
HDT
(previous day)
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5:00 AM
JST
11:00 AM
HDT
(previous day)
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6:00 AM
JST
12:00 PM
HDT
(previous day)
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7:00 AM
JST
1:00 PM
HDT
(previous day)
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8:00 AM
JST
2:00 PM
HDT
(previous day)
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9:00 AM
JST
3:00 PM
HDT
(previous day)
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10:00 AM
JST
4:00 PM
HDT
(previous day)
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11:00 AM
JST
5:00 PM
HDT
(previous day)
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12:00 PM
JST
6:00 PM
HDT
(previous day)
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1:00 PM
JST
7:00 PM
HDT
(previous day)
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2:00 PM
JST
8:00 PM
HDT
(previous day)
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3:00 PM
JST
9:00 PM
HDT
(previous day)
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4:00 PM
JST
10:00 PM
HDT
(previous day)
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5:00 PM
JST
11:00 PM
HDT
(previous day)
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6:00 PM
JST
12:00 AM
HDT
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7:00 PM
JST
1:00 AM
HDT
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8:00 PM
JST
2:00 AM
HDT
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9:00 PM
JST
3:00 AM
HDT
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10:00 PM
JST
4:00 AM
HDT
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11:00 PM
JST
5:00 AM
HDT
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Best Meeting Times for JST and HDT

Optimal Collaboration Hours

Best times for JST ↔ HDT meetings and calls

⚠️ Compromise times recommended

Alternative Meeting Times

7:00 AM JST → 1:00 PM HDT
Early hours coordination
8:00 AM JST → 2:00 PM HDT
Early hours coordination
6:00 PM JST → 12:00 AM HDT
Evening meeting time

Based on standard business hours (9:00 AM - 6:00 PM) in each time zone

JST vs HDT Time Zone Details

Technical Information & Comparison

Detailed timezone specifications and regional data

🇯🇵

Japan Standard Time

Source timezone

UTC Offset 9.0h
Code JST
Region Global
Status ✓ Active
🇺🇸

Hawaii-Aleutian Daylight Time

Target timezone

UTC Offset -9.0h
Code HDT
Region Global
Status ✓ Active
More JST Time Converters
12
Popular Zones
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