日付と時刻

タイムゾーン変換

インド、ニューヨークなどの時刻を変換します。

入力内容

UtilBrix が提供

New York observes EST or EDT depending on the date. Real IANA time-zone rules are used.

結果

Converted date and time
18 10 2026, 23:00:00
Destination zone
America/New_York (GMT-4, UTC-04:00)
Source time
19 Oct 2026, 12:00 +09:00
UTC
2026-10-19T03:00:00.000Z

EST is UTC−05:00; EDT is UTC−04:00. The converter automatically uses the offset for the selected date.

詳しい方法と使用例は英語で提供しています。

Step-by-step instructions (English)

  1. Choose the source and destination time zones.
  2. Enter the source date and local time; the date matters for seasonal offsets.
  3. Convert and check both the destination time and date.

計算式と方法

IANA time-zone rules convert the entered wall-clock time to an instant and format it in the destination zone. India uses Asia/Kolkata; New York uses America/New_York and changes between standard and daylight time. Nonexistent or ambiguous local times produce an explanation.

使用例

Noon in India is 01:30 in New York during standard time and 02:30 during daylight time. Choose a specific date to get the correct offset.

When this tool is useful

Plan a meeting between India and New York or compare another supported pair of time zones. A date-specific conversion helps avoid assuming that the difference stays constant throughout the year.

Common mistakes and limitations

  • New York alternates between standard and daylight time, so the page title is not a fixed-offset promise.
  • The destination can be on the previous or next calendar day; share the date as well as the time.

Practical questions about this tool (English)

Why does the India–New York difference change?

India uses a fixed offset while New York observes daylight saving. The converter uses the selected date with named time-zone rules to choose the relevant offset.

What happens during a clock change?

Some local times are skipped or occur twice. The tool explains ambiguous or nonexistent times rather than treating a clock reading as unambiguous. Verify a critical appointment with its organizer.

Put this tool into practice

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