Setting the Time

Tap the Time format combobox and choose '12 hour' or '24 hour', whichever you prefer.

Tap the up and down arrows on the Hour spinbox to set the hour.

Tap the up and down arrows on the Minute spinbox to set the minutes.

If you are using the 12 hour display, tap the AM/PM combobox and tap AM or PM as appropriate.

See Setting the Date.