Hello Blake,<div><br></div><div>Try using Date (<a href="http://drupal.org/project/date">http://drupal.org/project/date</a>) module which gives you support for per-user timezones. </div><div><br><div>--<div>Kindest regards,<br>
Adam Ludwinski</div><div>Weever Web Warehouse<br>mobile: +48 606 107 297<br><a href="mailto:adam.ludwinski@weever.net" target="_blank">adam.ludwinski@weever.net</a><br><a href="http://www.weever.net/" target="_blank">http://www.weever.net</a></div>
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<br><br><div class="gmail_quote">On 11 March 2011 03:56, Blake Senftner <span dir="ltr"><<a href="mailto:bsenftner@earthlink.net">bsenftner@earthlink.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="word-wrap:break-word">Does anyone have any advice or a good tutorial for working with timestamps, and user configurable timezones within Drupal 6?<div><br></div><div>I have analytics data being recorded, each event with a timestamp generated via time(), so it's a standard Unix timestamp.</div>
<div><br></div><div>Previously, I think I had the analytics being reported correctly for each user in their local timezone via:</div><div><br></div><div>$timeStr = format_date($action->timestamp, 'custom', $customTimeFormatStr, variable_get('date_default_timezone', 0));</div>
<div><br></div><div>But when I added analytics exporting, with the user being able to specify a start and end date/time string, I began to suspect that the above timezone handling is incorrect.</div><div><br></div><div>Given: </div>
<div>$start = '7 am';</div><div>$timecode = strtotime( $start );</div><div>$start = format_date( $timecode, 'custom', 'h:i:s a, d M Y', variable_get('date_default_timezone', 0));</div><div>
</div><div>I get $start is "11:00:00 pm, 10 Mar 2011' <- wrong time, correct date</div><div><br></div><div>However, changing the format_date() call to be like this:</div><div><br><div>
<span style="font-family:Helvetica"><div style="word-wrap:break-word"><span style="border-collapse:separate;color:rgb(0, 0, 0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="border-collapse:separate;color:rgb(0, 0, 0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div>
<span style="font-family:Arial;font-size:medium">$start = format_date( $timecode, 'custom', 'h:i:s a, d M Y', 0); <- changed variable_get() to 0</span></div><div><span style="font-family:Arial;font-size:medium"><br>
</span></div><div><span style="font-family:Arial;font-size:medium">Gives me "07:00:00 am, 11 Mar 2011" <- correct time, but one day in the future</span></div><div><span style="font-family:Arial;font-size:medium"><br>
</span></div><div><span style="font-family:Arial;font-size:medium">Leaving the timezone parameter off, letting it's default NULL value be used like this:</span></div><div><span style="font-family:Arial;font-size:medium"><br>
</span></div><div><span style="font-family:Arial;font-size:medium">$start = format_date( $timecode, 'custom', 'h:i:s a, d M Y');</span></div><div><span style="font-family:Arial;font-size:medium"><br></span></div>
<div><span style="font-family:Arial;font-size:medium">Gives me "12:00:00 am, 11 Mar 2011" <- wrong time plus one day in the future</span></div><div><font face="Arial"><span style="font-size:medium"><br></span></font></div>
<div><font face="Arial"><span style="font-size:medium">I guess I could just use the second form, with the timezone parameter set to zero, and recommend that users include the date, but it sure is convenient to just say "12:00:00 am" and "12:59:59 pm" to capture the analytics thus far for the day.</span></font></div>
<div><font face="Arial"><span style="font-size:medium"><br></span></font></div><div><font face="Arial"><span style="font-size:medium">Perhaps my date time configuration for the site is incorrect? At admin/settings/date-time I have the time zone set correctly, and user configurable timezones are enabled. BTW, the users of the site are international, with people on both east & west coast US, London, Israel, and India. So the timezone handling is important. </span></font></div>
<div><font face="Arial"><span style="font-size:medium"> <br></span></font>Sincerely,</div><div>-Blake</div><div><a href="mailto:bsenftner@earthlink.net" target="_blank">bsenftner@earthlink.net</a></div><div><a href="http://www.BlakeSenftner.com" target="_blank">www.BlakeSenftner.com</a></div>
<div><a href="http://www.MissingUbercartManual.com" target="_blank">www.MissingUbercartManual.com</a></div></span></span></div></span>
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<br></div></div></blockquote></div><br></div>