I've got an '01 and the clock is in a different location - in with the odo & trip meters - instead of in the fuel gauge like yours. It's covered in my Owners Manual on p 18, under "Instrument Panel." I don't know if yours adjusts the same way as mine, but I'm guessing it does, so here's the instructions from my OM.
Clock
The clock indicates 12 hour mode. Follow the procedure below to adjust the clock.
(7) and (8) ("SELECT" & "RESET"), simultaneously until the minute display blinks.
2. Adjust the minute display by pushing the "RESET" button (8).
NOTE: When the "RESET" button (8) is held in, the display advances continuously.
3. Push the "SELECT" button (7) to highlight the hour display.
4. Adjust the hour display by pushing the "RESET" button (8).
5. Push the "SELECT" button (7) to resume clock mode.[/list]