If you are using Windows Mobile handheld devices, then you need to adjust the time format on your handheld to be in a 24h format instead of the default 12h format.
To change the time setting, follow these steps:
- Tap on [Start / Settings]
- Select the [System] tab
- Tap on the [Regional Settings] icon
- Select the [Time] tab
- Set the Time style field to: HH:mm:ss
- Tap on [OK]