ミリタリータイム変換（4桁時間表記）
コロンなしの4桁表記、12時間制、24時間制を相互に変換します。
Convert military time
Four digits (1430), AM/PM (2:30 PM), or 24-hour (14:30); the tool detects which.
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Military time examples
| Military | 12-hour | 24-hour | Spoken |
|---|---|---|---|
| 0000 | 12:00 AM | 00:00 | zero hundred |
| 0900 | 9:00 AM | 09:00 | zero nine hundred |
| 1200 | 12:00 PM (noon) | 12:00 | twelve hundred |
| 1430 | 2:30 PM | 14:30 | fourteen thirty |
| 1830 | 6:30 PM | 18:30 | eighteen thirty |
| 2359 | 11:59 PM | 23:59 | twenty-three fifty-nine |
仕組みと計算ルール
- Military time is the 24-hour clock written as four digits without a colon: 0000–2359. 0900 is 9:00 AM, 1430 is 2:30 PM, and midnight is 0000.
- Paste any of the three forms: four digits (1430), standard time with AM/PM (2:30 PM), or 24-hour (14:30). The tool detects which it received and says so.
- All three equivalents are shown together, so one entry answers every format question at once.
知っておくと便利なポイント
- A leading zero is required in military form: 0:30 must be written 0030; the tool explains this instead of guessing.
- A zone suffix like the Z in “0900Z” (Zulu = UTC) is not treated as a conversion here; enter the four digits only.
- Military format has no seconds: if you enter 2:30:15 PM, the military row drops them and says so.
関連ツール
よくある質問
How is military time written?
As four digits, no colon: 0000–2359. 0900 is 9:00 AM, 1430 is 2:30 PM, midnight is 0000. A leading zero is required, so 0:30 must be written 0030.
Is military time the same as the 24-hour clock?
Essentially yes: military time is the 24-hour clock in four-digit form. Some contexts add a timezone letter suffix (like the Z in “0900Z”), which this tool notes.
Can I paste either format?
Yes. Four digits are read as military time; anything with a colon or AM/PM is read as standard time. The tool states which interpretation it used.