Unixタイムスタンプ変換
Unixタイムスタンプと日時を相互変換。
現在時刻
1775903499
2026-04-11T10:31:39.037Z
How to Use
- 1
Enter a Unix timestamp (seconds or milliseconds) to convert it to a human-readable date.
- 2
Or enter a date and time to get the corresponding Unix timestamp.
- 3
The current Unix timestamp is shown and updates in real time.
Features
Bidirectional Conversion
Convert from Unix timestamp to human-readable date, or from date to Unix timestamp.
Auto-Detects Milliseconds
Automatically detects whether your input is in seconds or milliseconds — no manual switching needed.
Live Current Timestamp
Displays the current Unix timestamp in real time, updating every second.
Timezone Support
Dates are displayed in your local timezone with UTC offset shown for clarity.
FAQ
Unixタイムスタンプとは？
1970年1月1日（UTC）からの経過秒数。Unix epochとも呼ばれます。
ミリ秒にも対応？
はい、入力が秒かミリ秒かを自動検出します。