HKCU\Control Panel\International
| Data type | Range | Default value |
|---|---|---|
| REG_SZ | 0 | 1 | For U.S. English: 1 |
Determines whether time is displayed with a 12-hour or 24-hour clock format.
| Value | Meaning |
|---|---|
| 0 | 12-hour clock. |
| 1 | 24-hour clock. |
To change the value of this entry, double-click Regional Options in Control Panel. Click the Time tab, and then make a selection from the Time format drop-down list box.