Time Difference Usa Japan Calculator

How to Use This Calculator

Using our time difference calculator is simple:

1. Select your location in the USA from the dropdown menu
2. Select your location in Japan from the dropdown menu
3. Click the "Calculate" button
4. View the results showing the time difference and explanation

The calculator will display the time difference in hours and minutes, along with a visual representation of the time zones involved.

Time Zones in the USA and Japan

The USA spans multiple time zones:

• Hawaii-Aleutian Time (HST/HDT)
• Alaska Time (AKST/AKDT)
• Pacific Time (PST/PDT)
• Mountain Time (MST/MDT)
• Central Time (CST/CDT)
• Eastern Time (EST/EDT)

Japan uses a single time zone:

• Japan Standard Time (JST)

JST is always 15 hours ahead of Hawaii-Aleutian Time and 12 hours ahead of Alaska Time during standard time.

Daylight Saving Time Effects

Both the USA and Japan observe daylight saving time, though on different schedules:

• USA: Typically starts on the second Sunday in March and ends on the first Sunday in November
• Japan: Typically starts on the second Sunday in April and ends on the first Sunday in October

Our calculator automatically accounts for these adjustments to provide accurate results.

Worked Examples

Example 1: New York to Tokyo

When it's 12:00 PM EST in New York, it's 2:00 PM JST in Tokyo (15-hour difference).

Example 2: Los Angeles to Tokyo

When it's 9:00 AM PST in Los Angeles, it's 12:00 PM JST in Tokyo (15-hour difference).

Example 3: Honolulu to Tokyo

When it's 6:00 AM HST in Honolulu, it's 9:00 AM JST in Tokyo (15-hour difference).