It's the time of the year again for the start/end of Daylight Saving Time (remember, spring forward, fall back). The exact date of the change varies from country to country:

<table border=1><td>Country</td><td>Start/end of DST</td> <td>USA, Canada</td><td>March 9</td><td>Europe, Western Australia</td><td>March 30</td><td>New Zealand, Rest of Australia</td><td>April 6</td></table>
Some other countries start on a different date. For details, see Daylight Saving Time (DST) transitions - first half of 2008.

You'll need to adjust your 'time offset' in your Display Preferences to ensure that the time shown on posts is correct relative to your local time.