Index: date/date/date_admin.inc
--- date/date/date_admin.inc Base (1.4)
+++ date/date/date_admin.inc Locally Modified (Based On 1.4)
@@ -245,7 +245,7 @@
 
     case 'save':
 
-      $options = array('granularity', 'timezone_db', 'tz_handling', 'todate', 'repeat', 'repeat_collapsed', 'default_format');
+      $options = array('granularity', 'timezone_db', 'tz_handling', 'todate', 'repeat', 'repeat_collapsed', 'default_format', 'all_day');
       return $options;
 
     case 'database columns':
@@ -311,6 +311,9 @@
     $db_columns['offset'] = array('type' => 'int', 'not null' => FALSE, 'sortable' => TRUE, 'views' => FALSE);
     if (!empty($field['todate'])) $db_columns['offset2'] = array('type' => 'int', 'not null' => FALSE, 'sortable' => TRUE, 'views' => FALSE);
   }
+  if (isset($field['all_day']) && $field['all_day'] == TRUE) {
+    $db_columns['all_day'] = array('type' => 'int', 'length' => 1, 'not null' => FALSE, 'sortable' => FALSE);
+  }
   if (isset($field['repeat']) && $field['repeat'] == 1) {
     $db_columns['rrule'] = array('type' => 'text', 'not null' => FALSE, 'sortable' => FALSE, 'views' => FALSE);
   }
@@ -329,6 +332,7 @@
     $granularity = array('year', 'month', 'day', 'hour', 'minute');
   }
   $tz_handling = isset($field['tz_handling']) ? $field['tz_handling'] : (date_has_time($granularity) ? 'site' : 'none');
+  $all_day = isset($field['all_day']) ? $field['all_day'] : FALSE;
   
   // If adding a repeat, override the Content module's handling of the multiple values option.
   if (module_exists('date_repeat') && date_is_repeat_field($field)) {
@@ -375,6 +379,12 @@
     '#options' => date_timezone_handling_options(),
     '#description' => $description,
   );
+  $form['all_day'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('All-day checkbox'),
+    '#default_value' => $all_day,
+    '#description' => t('If turned on, all-day property of the dates can be handled.'),
+  );
   // Force this value to hidden because we don't want to allow it to be changed right now,
   // but allow it to be a variable if needed.
   $form['timezone_db'] = array(
Index: date/date/date_all_day.js
--- date/date/date_all_day.js No Base Revision
+++ date/date/date_all_day.js Locally New
@@ -0,0 +1,208 @@
+function addDefaultDate(default_year, default_month, default_day, fieldClass) {
+  var currentDate = new Date();
+  currentDate.setFullYear(default_year, default_month, default_day);
+  var curr_month = currentDate.getMonth() + 1;
+  var curr_day = currentDate.getDate();
+  var curr_year = currentDate.getFullYear();
+
+  var mm = new String(curr_month);
+  var dd = new String(curr_day);
+  if ( mm.length == 1 ) mm = "0" + mm; // Add leading zeros to month and day if required
+  if ( dd.length == 1 ) dd = "0" + dd;
+  var curr_date = curr_year+'-'+mm+'-'+dd;
+
+  if($("#edit-"+fieldClass+"-0-value-day").val() == "") {
+    $("#edit-"+fieldClass+"-0-value-day").val(curr_day);
+  }
+  if($("#edit-"+fieldClass+"-0-value-month").val() == "") {
+    $("#edit-"+fieldClass+"-0-value-month").val(curr_month);
+  }
+  if($("#edit-"+fieldClass+"-0-value-year").val() == "") {
+    $("#edit-"+fieldClass+"-0-value-year").val(curr_year);
+  }
+  if($("#edit-"+fieldClass+"-0-value-hour").val() == "") $("#edit-"+fieldClass+"-0-value-hour").val("1");
+  if($("#edit-"+fieldClass+"-0-value-minute").val() == "") $("#edit-"+fieldClass+"-0-value-minute").val("00");
+  if($("#edit-"+fieldClass+"-0-value-ampm").val() == "") $("#edit-"+fieldClass+"-0-value-ampm").val("am");
+  
+  $("#edit-"+fieldClass+"-0-value-date").val(curr_date);
+  $("#edit-"+fieldClass+"-0-value-timeEntry-popup-1").val('00:00');
+}
+
+function dateAllDayToggle (is_checked, fieldClass, is_required) {
+  if (is_checked) {
+    DateAllDayYes(fieldClass);
+  }
+  else {
+    DateAllDayNo(fieldClass, is_required);
+  }
+}
+
+function DateAllDayYes(fieldClass) {
+  var currentDate = new Date();
+  var curr_hours = currentDate.getHours() + 1;
+  var curr_minutes = currentDate.getMinutes() + 1;
+  var curr_month = currentDate.getMonth() + 1;
+  var mm = new String(curr_month);
+  var curr_day = currentDate.getDate();
+  var dd = new String(curr_day);
+  var curr_year = currentDate.getFullYear();
+
+  if ( mm.length == 1 ) mm = "0" + mm; // Add leading zeros to month and day if required
+  if ( dd.length == 1 ) dd = "0" + dd;
+  
+  var curr_date = curr_year+'-'+mm+'-'+dd;
+
+  if($("#edit-"+fieldClass+"-0-value2-day").val() == "") {
+    if ($("#edit-"+fieldClass+"-0-value-day").val() != "") $("#edit-"+fieldClass+"-0-value2-day").val($("#edit-"+fieldClass+"-0-value-day").val());
+    else $("#edit-"+fieldClass+"-0-value2-day").val(curr_day);
+  }
+  if($("#edit-"+fieldClass+"-0-value2-month").val() == "") {
+    if ($("#edit-"+fieldClass+"-0-value-month").val() != "") $("#edit-"+fieldClass+"-0-value2-month").val($("#edit-"+fieldClass+"-0-value-month").val());
+    else $("#edit-"+fieldClass+"-0-value2-month").val(curr_month);
+  }
+  if($("#edit-"+fieldClass+"-0-value2-year").val() == "") {
+    if ($("#edit-"+fieldClass+"-0-value-year").val() != "") $("#edit-"+fieldClass+"-0-value2-year").val($("#edit-"+fieldClass+"-0-value-year").val());
+    else $("#edit-"+fieldClass+"-0-value2-year").val(curr_year);
+  }
+
+  if($("#edit-"+fieldClass+"-0-value-day").val() == "") {
+    if ($("#edit-"+fieldClass+"-0-value2-day").val() != "") $("#edit-"+fieldClass+"-0-value-day").val($("#edit-"+fieldClass+"-0-value2-day").val());
+    else $("#edit-"+fieldClass+"-0-value-day").val(curr_day);
+  }
+
+  if($("#edit-"+fieldClass+"-0-value-month").val() == "") {
+    if ($("#edit-"+fieldClass+"-0-value2-month").val() != "") $("#edit-"+fieldClass+"-0-value-month").val($("#edit-"+fieldClass+"-0-value2-month").val());
+    else $("#edit-"+fieldClass+"-0-value-month").val(curr_month);
+  }
+
+  if($("#edit-"+fieldClass+"-0-value-year").val() == "") {
+    if ($("#edit-"+fieldClass+"-0-value2-year").val() != "") $("#edit-"+fieldClass+"-0-value-year").val($("#edit-"+fieldClass+"-0-value2-year").val());
+    else $("#edit-"+fieldClass+"-0-value-year").val(curr_year);
+  }
+
+  if($("#edit-"+fieldClass+"-0-value2-date").val() == "") {
+    if (($("#edit-"+fieldClass+"-0-value-date").val() != "") && ($("#edit-"+fieldClass+"-0-value-date").val() != undefined)) $("#edit-"+fieldClass+"-0-value2-date").val($("#edit-"+fieldClass+"-0-value-date").val());
+    else $("#edit-"+fieldClass+"-0-value2-date").val(curr_date);
+  }
+
+  if($("#edit-"+fieldClass+"-0-value-date").val() == "") {
+    if (($("#edit-"+fieldClass+"-0-value2-date").val() != "") && ($("#edit-"+fieldClass+"-0-value2-date").val() != undefined)) $("#edit-"+fieldClass+"-0-value-date").val($("#edit-"+fieldClass+"-0-value2-date").val());
+    else $("#edit-"+fieldClass+"-0-value-date").val(curr_date);
+  }
+
+  if($("#edit-"+fieldClass+"-0-value-hour").val() == "") {
+    if ($("#edit-"+fieldClass+"-0-value-ampm").val() == undefined) {
+      $("#edit-"+fieldClass+"-0-value-hour").val("0");
+    }
+    else {
+      $("#edit-"+fieldClass+"-0-value2-hour").val("1");
+      if($("#edit-"+fieldClass+"-0-value-ampm").val() == "") $("#edit-"+fieldClass+"-0-value-ampm").val("am");
+    }
+  }
+  if($("#edit-"+fieldClass+"-0-value-minute").val() == "") $("#edit-"+fieldClass+"-0-value-minute").val("00");
+
+  if ($("#edit-"+fieldClass+"-0-value2-ampm").val() == undefined) {
+    $("#edit-"+fieldClass+"-0-value2-hour").val("23");
+  }
+  else {
+    $("#edit-"+fieldClass+"-0-value2-hour").val("11");
+    $("#edit-"+fieldClass+"-0-value2-ampm").val("pm");
+  }
+  $("#edit-"+fieldClass+"-0-value2-minute").val("59");
+  
+  //if ($("#edit-"+fieldClass+"-0-value-timeEntry-popup-1").val() == "") {
+    $("#edit-"+fieldClass+"-0-value-timeEntry-popup-1").val('00:00');
+  //}
+  //if ($("#edit-"+fieldClass+"-0-value2-timeEntry-popup-1").val() == "") {
+    $("#edit-"+fieldClass+"-0-value2-timeEntry-popup-1").val('23:59');
+  //}
+}
+
+function DateAllDayNo(fieldClass, is_required) {
+  var currentDate = new Date();
+  var curr_hours = currentDate.getHours() + 1;
+  var curr_minutes = currentDate.getMinutes() + 1;
+  var curr_month = currentDate.getMonth() + 1;
+  var mm = new String(curr_month);
+  var curr_day = currentDate.getDate();
+  var dd = new String(curr_day);
+  var curr_year = currentDate.getFullYear();
+  
+  if (is_required == "") is_required = "0";
+
+  if ( mm.length == 1 ) mm = "0" + mm; // Add leading zeros to month and day if required
+  if ( dd.length == 1 ) dd = "0" + dd;
+  
+  var curr_date = curr_year+'-'+mm+'-'+dd;
+
+  if((($("#edit-"+fieldClass+"-0-value2-day").val() == curr_day) || ($("#edit-"+fieldClass+"-0-value2-day").val() == $("#edit-"+fieldClass+"-0-value-day").val()))
+  && (($("#edit-"+fieldClass+"-0-value2-month").val() == curr_month) || ($("#edit-"+fieldClass+"-0-value2-month").val() == $("#edit-"+fieldClass+"-0-value-month").val()))
+  && (($("#edit-"+fieldClass+"-0-value2-year").val() == curr_year) || ($("#edit-"+fieldClass+"-0-value2-year").val() == $("#edit-"+fieldClass+"-0-value-year").val()))
+  && (((($("#edit-"+fieldClass+"-0-value2-hour").val() == "11") || ($("#edit-"+fieldClass+"-0-value2-hour").val() == "23")) && ($("#edit-"+fieldClass+"-0-value2-minute").val() == "59")
+      && ($("#edit-"+fieldClass+"-0-value2-ampm").val() == "pm"))
+      || (((($("#edit-"+fieldClass+"-0-value2-hour").val() == "11") || ($("#edit-"+fieldClass+"-0-value2-hour").val() == "23")) && ($("#edit-"+fieldClass+"-0-value2-minute").val() == "59"))
+          && ($("#edit-"+fieldClass+"-0-value2-ampm").val() == undefined)))
+    ) {
+    $("#edit-"+fieldClass+"-0-value2-year").val("")
+    $("#edit-"+fieldClass+"-0-value2-month").val("")
+    $("#edit-"+fieldClass+"-0-value2-day").val("");
+    $("#edit-"+fieldClass+"-0-value2-minute").val("");
+    $("#edit-"+fieldClass+"-0-value2-hour").val("");
+    $("#edit-"+fieldClass+"-0-value2-ampm").val("");
+  }
+
+  if ((($("#edit-"+fieldClass+"-0-value-day").val() == curr_day)
+      || ($("#edit-"+fieldClass+"-0-value-day").val() == $("#edit-"+fieldClass+"-0-value2-day").val())
+      || ($("#edit-"+fieldClass+"-0-value2-day").val() == "")
+     )
+  && (($("#edit-"+fieldClass+"-0-value-month").val() == curr_month)
+       || ($("#edit-"+fieldClass+"-0-value-month").val() == $("#edit-"+fieldClass+"-0-value2-month").val())
+       || ($("#edit-"+fieldClass+"-0-value2-month").val() == "")
+     )
+  && (($("#edit-"+fieldClass+"-0-value-year").val() == curr_year)
+       || ($("#edit-"+fieldClass+"-0-value-year").val() == $("#edit-"+fieldClass+"-0-value2-year").val())
+       || ($("#edit-"+fieldClass+"-0-value2-year").val() == "")
+     )
+  && (((($("#edit-"+fieldClass+"-0-value-hour").val() == "0") || ($("#edit-"+fieldClass+"-0-value-hour").val() == "1")) && ($("#edit-"+fieldClass+"-0-value-minute").val() == "00")
+      && ($("#edit-"+fieldClass+"-0-value-ampm").val() == "am"))
+      || ((($("#edit-"+fieldClass+"-0-value-hour").val() == "0") || ($("#edit-"+fieldClass+"-0-value-hour").val() == "1")) && ($("#edit-"+fieldClass+"-0-value-minute").val() == "00"))
+          && ($("#edit-"+fieldClass+"-0-value-ampm").val() == undefined))
+  && (is_required == "0")
+    ) {
+    $("#edit-"+fieldClass+"-0-value-year").val("");
+    $("#edit-"+fieldClass+"-0-value-month").val("");
+    $("#edit-"+fieldClass+"-0-value-day").val("");
+    $("#edit-"+fieldClass+"-0-value-minute").val("");
+    $("#edit-"+fieldClass+"-0-value-hour").val("");
+    $("#edit-"+fieldClass+"-0-value-ampm").val("");
+  }
+  
+  if ((($("#edit-"+fieldClass+"-0-value2-date").val() == curr_date) && ($("#edit-"+fieldClass+"-0-value-date").val() == curr_date))
+      || (($("#edit-"+fieldClass+"-0-value2-date").val() == undefined) && ($("#edit-"+fieldClass+"-0-value-date").val() == curr_date))
+      || ($("#edit-"+fieldClass+"-0-value2-date").val() == $("#edit-"+fieldClass+"-0-value-date").val())) {
+    $("#edit-"+fieldClass+"-0-value-date").val("");
+  }
+  
+  if (($("#edit-"+fieldClass+"-0-value2-date").val() == curr_date) || ($("#edit-"+fieldClass+"-0-value2-date").val() == $("#edit-"+fieldClass+"-0-value-date").val())
+      || ($("#edit-"+fieldClass+"-0-value-date").val() == "")) {
+    $("#edit-"+fieldClass+"-0-value2-date").val("");
+  }
+  
+  if ($("#edit-"+fieldClass+"-0-value-timeEntry-popup-1").val() == "00:00") {
+    $("#edit-"+fieldClass+"-0-value-timeEntry-popup-1").val("09:00");
+  }
+  if ($("#edit-"+fieldClass+"-0-value2-timeEntry-popup-1").val() == "23:59") {
+    $("#edit-"+fieldClass+"-0-value2-timeEntry-popup-1").val("17:00");
+  }
+}
Index: date/date/date_elements.inc
--- date/date/date_elements.inc Base (1.4)
+++ date/date/date_elements.inc Locally Modified (Based On 1.4)
@@ -60,8 +60,17 @@
       continue;
     }
 
+/*
+    if ($item['all_day'] == TRUE) {
+      $items[$delta]['value'] = date(DATE_FORMAT_DATE, strtotime($items[$delta]['value']));
+      if ($field['todate']) {
+        $items[$delta]['value2'] = date(DATE_FORMAT_DATE, strtotime($items[$delta]['value2']));
+      }
+    }
+ */
     // Special case for ISO dates which may have been given artificial values for
     // some date parts to make them into valid dates.
+    //elseif ($field['type'] == DATE_ISO) {
     if ($field['type'] == DATE_ISO) {
       $items[$delta]['value'] = date_limit_value($items[$delta]['value'], date_granularity($field), $field['type']);
       if ($field['todate']) {
@@ -170,6 +179,17 @@
     _date_repeat_widget($element, $field, $items, $delta);
     $element['rrule']['#weight'] = $field['widget']['weight'] + .4;
   }
+  if ($field['all_day'] == TRUE) {
+    $element['all_day'] = array(
+      '#title' => t('All-day'),
+      '#type' => 'checkbox',
+      '#delta' => $delta,
+      '#default_value' => $items[$delta]['all_day'],
+      '#description' => t('Turn on if the date is all-day.'),
+      '#attributes' => array('onclick' => 'dateAllDayToggle(this.checked, \''. str_replace('_', '-', $field['field_name']) .'\', \''. $field['required'] .'\')'),
+    );
+    drupal_add_js(drupal_get_path('module', 'date') .'/date_all_day.js');
+  }
   return $element;
 }
 
Index: date/date_api.module
--- date/date_api.module Base (1.4)
+++ date/date_api.module Locally Modified (Based On 1.4)
Index: date/theme/theme.inc
--- date/theme/theme.inc Base (1.4)
+++ date/theme/theme.inc Locally Modified (Based On 1.4)
@@ -159,6 +159,9 @@
         $events[$uid]['timezone'] = '';
       }
       $date_format = ($row->calendar_all_day == TRUE) ? DATE_FORMAT_ICAL_DATE : DATE_FORMAT_ICAL;
+      if ($event['end'] && $row->calendar_all_day == TRUE){
+        $event['end']->modify("+1 day");
+      }
\ No newline at end of file
       $events[$uid]['start'] = date_format($event['start'], $date_format);
       if ($event['start'] && $event['end']) {
         $events[$uid]['end'] = date_format($event['end'], $date_format);