Yes, completely free with no signup required.

Does my data leave my device?

No. All parsing happens locally in your browser — nothing is sent to a server.

Does it work on mobile?

Yes. The tool is mobile-first and works on any modern browser.

任意の日付文字列を解析して年・月・日・UNIXタイムスタンプ・ISO 8601などの要素を表示します。

Date string

Type or paste a date string (ISO 8601, RFC 2822, Unix timestamp, or natural language).
Click "Parse" to see a breakdown of all date and time components.
Use "Use now" to quickly inspect the current date and time.

Is this tool free?: Yes, completely free with no signup required.
Does my data leave my device?: No. All parsing happens locally in your browser — nothing is sent to a server.
Does it work on mobile?: Yes. The tool is mobile-first and works on any modern browser.

Last updated: 2026-05-20 By jarvisbox