日付フォーマッター＆計算機

使い方

ISO 8601、Unixタイムスタンプなど、さまざまな形式間で日付を変換。日付の差分も簡単に計算できます。

1. 1Enter a date by typing it or using the date picker.
2. 2Select an output format from the dropdown (ISO 8601, Unix timestamp, US, EU, relative, and more).
3. 3The formatted date string appears instantly in the output field.
4. 4Copy the result or switch formats to compare different representations.

主な機能

• Formats dates in ISO 8601, Unix timestamp, US, EU, and relative formats
• Supports custom format strings for fine-grained control
• Converts between any two date representations instantly
• Handles past and future dates with timezone awareness

よくある質問

詳しく読む

• Unix Timestamp Explained — What It Is and How to Convert It